Isotopes
•Download as PPTX, PDF•
1 like•314 views
Isotopes are atom species of the same chemical element that have different masses due to varying numbers of neutrons, while having the same number of protons and electrons. The element hydrogen has three main isotopes: regular hydrogen with one proton; deuterium with one proton and one neutron; and tritium with one proton and two neutrons. Isotopes of the same element typically behave the same chemically, though some are radioactive and decay by emitting radiation while converting to a different isotope or element. Different isotopes are believed to have been created during the Big Bang or in supernova explosions and cosmic ray collisions.
Report
Share
Report
Share
Recommended
Defining the atom notes
This document discusses the early history and development of atomic theory. It describes how Democritus first proposed the idea of atoms in ancient Greece. John Dalton later transformed these ideas into a scientific theory through experimental evidence showing atoms combine in simple whole number ratios. Dalton proposed atoms as the fundamental units of elements and that they combine or separate in chemical reactions. Later, subatomic particles like electrons, protons, and neutrons were discovered inside atoms through experiments. The nucleus, composed of protons and neutrons, was found to be at the center with most mass concentrated there.
Defining the Atom
This document discusses the early history and development of atomic theory. It describes how Democritus first proposed the idea of atoms in ancient Greece. In the early 19th century, John Dalton transformed these ideas into a scientific theory through experiments showing chemical combinations occur in simple whole number ratios. Dalton proposed atoms as the smallest particles of elements that combine in chemical reactions. Later, experiments revealed atoms have smaller subatomic particles - electrons, protons, and neutrons - and that most of an atom's mass is concentrated in its tiny, dense nucleus.
2 contribution of john dalton martin
John Dalton's atomic theory proposed that all matter is composed of extremely small indivisible particles called atoms. He hypothesized that atoms of the same element are identical, while atoms of different elements differ in their properties. Dalton also suggested that atoms combine in fixed ratios to form compounds. His atomic theory provided an explanation for laws such as the law of conservation of mass and the law of definite proportions. Dalton's experiments helped establish the idea that atoms are the basic building blocks of all matter.
Atoms chemistry
Atoms are the basic building blocks of matter and consist of a nucleus containing protons and neutrons, surrounded by electrons. The nucleus contains positively charged protons and neutral neutrons, while electrons have a negative charge. Atoms join to form molecules. Ancient Greek philosophers first proposed the idea of atoms as indivisible particles that make up all matter, though atoms could not be observed until the 1800s when Dalton performed experiments and proposed his atomic theory, including that atoms are indestructible, identical for a given element, and can be rearranged in chemical reactions to form compounds. Understanding atoms allows for determining the characteristics of elements.
Chemical Reactions EL
Elements are substances made of only one type of atom. Atoms contain protons, neutrons and electrons. Metals are elements that conduct heat and electricity, while non-metals have different properties and are usually gases or brittle solids. The periodic table displays all the known chemical elements and their properties in an organized format. Compounds are formed when two or more elements chemically combine, and chemical reactions involve transformations between substances that cannot be reversed.
Chapter 4
This document provides an overview of how elements are organized in the periodic table. It discusses early classification systems developed by Newlands and Mendeleev and how Moseley later determined that atomic number, not atomic mass, is the basis for organization. Key periodic properties like valence electrons and how they determine chemical properties are explained. Finally, it gives a brief tour of different groups of elements and trends seen in the periodic table.
Daltons atomic theory
Dalton's atomic theory proposed that:
1) Matter is made of extremely small indivisible particles called atoms.
2) Atoms of a given element are identical in size, mass and properties.
3) Atoms of different elements vary in size, mass and properties.
The theory had limitations such as not explaining Gay-Lussac's law of combining volumes or the nature of atomic bonding.
Modern atomic theory has updated that:
1) Atoms can be subdivided into smaller particles like electrons and protons.
2) Atoms are destructible through nuclear processes converting mass to energy.
3) Atoms of a given element can differ in mass and properties as
G9 chemistry vocabulary
A nearly-comprehensive list of vocabulary terms needed for introductory chemistry in grade 9 science, including a variety of source websites for reference.
Recommended
Defining the atom notes
This document discusses the early history and development of atomic theory. It describes how Democritus first proposed the idea of atoms in ancient Greece. John Dalton later transformed these ideas into a scientific theory through experimental evidence showing atoms combine in simple whole number ratios. Dalton proposed atoms as the fundamental units of elements and that they combine or separate in chemical reactions. Later, subatomic particles like electrons, protons, and neutrons were discovered inside atoms through experiments. The nucleus, composed of protons and neutrons, was found to be at the center with most mass concentrated there.
Defining the Atom
This document discusses the early history and development of atomic theory. It describes how Democritus first proposed the idea of atoms in ancient Greece. In the early 19th century, John Dalton transformed these ideas into a scientific theory through experiments showing chemical combinations occur in simple whole number ratios. Dalton proposed atoms as the smallest particles of elements that combine in chemical reactions. Later, experiments revealed atoms have smaller subatomic particles - electrons, protons, and neutrons - and that most of an atom's mass is concentrated in its tiny, dense nucleus.
2 contribution of john dalton martin
John Dalton's atomic theory proposed that all matter is composed of extremely small indivisible particles called atoms. He hypothesized that atoms of the same element are identical, while atoms of different elements differ in their properties. Dalton also suggested that atoms combine in fixed ratios to form compounds. His atomic theory provided an explanation for laws such as the law of conservation of mass and the law of definite proportions. Dalton's experiments helped establish the idea that atoms are the basic building blocks of all matter.
Atoms chemistry
Atoms are the basic building blocks of matter and consist of a nucleus containing protons and neutrons, surrounded by electrons. The nucleus contains positively charged protons and neutral neutrons, while electrons have a negative charge. Atoms join to form molecules. Ancient Greek philosophers first proposed the idea of atoms as indivisible particles that make up all matter, though atoms could not be observed until the 1800s when Dalton performed experiments and proposed his atomic theory, including that atoms are indestructible, identical for a given element, and can be rearranged in chemical reactions to form compounds. Understanding atoms allows for determining the characteristics of elements.
Chemical Reactions EL
Elements are substances made of only one type of atom. Atoms contain protons, neutrons and electrons. Metals are elements that conduct heat and electricity, while non-metals have different properties and are usually gases or brittle solids. The periodic table displays all the known chemical elements and their properties in an organized format. Compounds are formed when two or more elements chemically combine, and chemical reactions involve transformations between substances that cannot be reversed.
Chapter 4
This document provides an overview of how elements are organized in the periodic table. It discusses early classification systems developed by Newlands and Mendeleev and how Moseley later determined that atomic number, not atomic mass, is the basis for organization. Key periodic properties like valence electrons and how they determine chemical properties are explained. Finally, it gives a brief tour of different groups of elements and trends seen in the periodic table.
Daltons atomic theory
Dalton's atomic theory proposed that:
1) Matter is made of extremely small indivisible particles called atoms.
2) Atoms of a given element are identical in size, mass and properties.
3) Atoms of different elements vary in size, mass and properties.
The theory had limitations such as not explaining Gay-Lussac's law of combining volumes or the nature of atomic bonding.
Modern atomic theory has updated that:
1) Atoms can be subdivided into smaller particles like electrons and protons.
2) Atoms are destructible through nuclear processes converting mass to energy.
3) Atoms of a given element can differ in mass and properties as
G9 chemistry vocabulary
A nearly-comprehensive list of vocabulary terms needed for introductory chemistry in grade 9 science, including a variety of source websites for reference.
dalton's atomic theory
Dalton's atomic theory proposed that all matter is made of tiny indivisible particles called atoms. The theory was based on the law of conservation of mass, which states that mass is neither created nor destroyed in chemical reactions, and the law of constant proportions, which says that elements combine in definite proportions. Dalton put forth several postulates of the theory, including that atoms of a given element are identical in mass and properties and combine in small whole number ratios to form compounds. However, the theory had some drawbacks, as atoms are now known to be divisible and some atoms of different elements have the same mass.
Dalton’s Atomic Model
This is a powerpoint presentation that discusses about the topic or lesson: Dalton's Atomic Model. It also includes the history of John Dalton, characteristics and concepts of Dalton's Atomic Model.
Chemistry Review
This document discusses key chemistry concepts important for understanding biology. It explains that organisms are made of macromolecules, which are made of smaller molecules and atoms. Atoms are the smallest units and are made up of protons, neutrons and electrons. The number and arrangement of protons and neutrons determines an element's identity and properties. Elements can have different isotopes that vary in their number of neutrons. Atoms combine through ionic bonds, where they transfer electrons, or covalent bonds, where they share electrons to form molecules and compounds with unique properties.
Dalton Atomic Theory
John Dalton developed atomic theory in 1808, proposing six main postulates: 1) Matter is made of extremely small indivisible particles called atoms, 2) Atoms of a given element are identical in mass and properties, 3) Atoms of different elements differ in mass and properties, 4) Atoms combine in simple whole number ratios to form chemical compounds, 5) In compounds the relative number and type of atoms is fixed, and 6) Atoms cannot be created, destroyed, or divided in chemical reactions. Dalton's theory did not account for isotopes or allotropes which have atoms of varying masses or properties within an element.
Review question chap4
1. The document contains a student's responses to review questions about various scientific concepts from Chapter 4.
2. The student defines the key differences between scientific and non-scientific disciplines, noting that scientific disciplines are objective and deal with empirical evidence, while non-scientific disciplines are more subjective.
3. The student explains that a hypothesis is a proposed explanation for an observation that can be tested, and that having a hypothesis is important for scientists to determine what experiments to carry out.
Chapter 12
Periodic Table
All information is gather through a vartiry of resources and is only here to help my students with classroom instruction
Chemistry fundamentals part 2
This document discusses the basic chemistry concepts of food science, including:
1. It defines chemical and physical changes, explaining that chemical reactions rearrange atoms while physical changes do not change chemical composition.
2. It describes the parts of an atom including protons, neutrons, and electrons, and how atoms bond through ionic and covalent bonds to form compounds.
3. It explains how to determine the mass of one mole of an element or compound using atomic mass and molar mass.
The Periodic Table
organizing the elements, periodic table, Mendeleev, periodic law, metals, nonmetals, metalloinds, periodic trends
Chemical building blocks
The document contains multiple choice, true/false, and completion questions about the periodic table and properties of elements. It covers topics like Mendeleev's creation of the periodic table based on atomic mass, use of atomic number to organize the table, predicting properties from an element's location, groups having similar properties, atomic structure, states of matter, and nuclear fusion in stars.
Atoms And The Periodic Table
Presentation outlining brief history of atom and periodic table, atomic structure and set up of the periodic table.Follows CXC curriculum gor CSEC
Wonders of periodic table
Periodic Table is the tabular arrangement of all the chemical elements which are organized based on atomic numbers, electronic configurations and existing chemical properties.
Wonders of Periodic Table
If all the elements are arranged in the order of their atomic weights, a periodic repetition of properties is obtained. This is expressed by the law of periodicity.— Dmitry Ivanovich Mendeleev
4.2
The document discusses the organization and properties of elements in the periodic table. Elements are arranged vertically into groups based on their outer electron configuration, and horizontally into periods based on the number of electron shells. Elements within the same group have similar properties because they have the same number of valence electrons, which determines how they bond and their resulting properties. The periodic table is divided into key groups including alkali metals, alkaline earth metals, transition metals, metalloids, nonmetals, and noble gases, with each group having distinct physical and chemical properties.
Periodic Table of Elements - Science 8
The document discusses the periodic table of elements created by Dmitri Mendeleev in 1869. It organizes all known elements based on their atomic structure and chemical properties. Key terms defined include atomic number, symbol, atomic weight, protons, electrons, neutrons, metals, non-metals, metalloids, periods, families, and properties of common element groups such as alkali metals, halogens and noble gases. The periodic table arranges elements horizontally by atomic number and vertically into families with similar traits.
Dalton and lavoisier
John Dalton proposed his atomic theory which included five main ideas: 1) Elements are made of indivisible particles called atoms, 2) Atoms of different elements have different properties and atomic weights, 3) Atoms of the same element are identical, 4) Atoms can combine to form compounds with fixed ratios, 5) Atoms are not created, destroyed, or divided in chemical reactions. Meanwhile, Lavoisier established the law of conservation of mass, which states that mass is neither created nor destroyed in chemical reactions. Together, Dalton and Lavoisier's work established the foundations of modern atomic theory and chemistry.
The atom 1
Chemistry is relevant to everything in our lives. Matter is neither created nor destroyed in chemical reactions. The atom is the smallest particle that cannot be broken down further. Elements are organized in the periodic table based on their atomic number and properties. Elements bond through ionic bonding, where ions with opposite charges attract, or covalent bonding, where atoms share electrons to fill their outer shells.
Ch 5.1,5.2 organizing elements & the periodic table
The document summarizes key aspects of the periodic table, including how Mendeleev organized the elements and used the periodic table to predict undiscovered elements. It describes the modern periodic table as arranging elements by atomic number in rows called periods and columns called groups, with elements in the same group having similar properties due to their electron configurations. The document also discusses atomic structure including atomic number and mass, and classifies elements as metals, nonmetals, and metalloids based on their physical and chemical properties.
Periodic Table of Elements
The document summarizes key information about the periodic table of elements, including its organization of elements according to atomic number and properties. Elements are grouped into families with similar properties, and the periodic table can be used to predict chemical reactions and properties of elements. Different areas of the periodic table are described, including alkali metals, transition metals, noble gases, and more.
Dalton and bohr - chemistry pro.
John Dalton developed the first modern atomic theory which stated that elements are made of extremely small indivisible particles called atoms. Atoms of a given element are identical but differ from atoms of other elements. Atoms combine in simple whole number ratios to form compounds.
Niels Bohr contributed the Bohr model of the atom which depicted electrons traveling in discrete orbits around the nucleus. He also developed the shell model which explained an element's chemical properties based on its outermost electrons. Bohr received the 1922 Nobel Prize in Physics for his investigations into atomic structure and radiation. He played an important role in the development of quantum mechanics and nuclear physics.
Dalton’s Atomic Theory
This is a summary of Dalton's Atomic theory. Based from Ma'am Andaya's Handout and the Cracolice Book.
Chapter 2 form 4
- Matter is composed of particles called atoms and molecules. Atoms are the smallest particles of elements, while molecules contain two or more bonded atoms.
- The kinetic theory of matter describes the states of matter based on particle motion. Solids have fixed shapes, liquids have mobile particles that follow container shapes, and gases have freely moving particles.
- The atomic structure has been discovered through the work of scientists like Dalton, Thomson, Rutherford, Bohr, and Chadwick. Modern atomic theory includes electrons orbiting a nucleus of protons and neutrons.
- Isotopes are atoms of the same element with different numbers of neutrons. Isotopes have identical chemical properties but different physical properties and masses
Chapter 2 form 4
- Matter is composed of particles called atoms and molecules. Atoms are the smallest particles that make up elements, and molecules are made of two or more bonded atoms.
- The structure of the atom has been discovered over time by scientists like Dalton, Thomson, Rutherford, Bohr, and Chadwick. We now know atoms have a tiny, dense nucleus containing protons and neutrons, surrounded by electrons.
- Isotopes are atoms of the same element with different numbers of neutrons. Some isotopes are unstable and radioactive, while others are stable. Radioactive isotopes have important applications in medicine, agriculture, and industry.
More Related Content
What's hot
dalton's atomic theory
Dalton's atomic theory proposed that all matter is made of tiny indivisible particles called atoms. The theory was based on the law of conservation of mass, which states that mass is neither created nor destroyed in chemical reactions, and the law of constant proportions, which says that elements combine in definite proportions. Dalton put forth several postulates of the theory, including that atoms of a given element are identical in mass and properties and combine in small whole number ratios to form compounds. However, the theory had some drawbacks, as atoms are now known to be divisible and some atoms of different elements have the same mass.
Dalton’s Atomic Model
This is a powerpoint presentation that discusses about the topic or lesson: Dalton's Atomic Model. It also includes the history of John Dalton, characteristics and concepts of Dalton's Atomic Model.
Chemistry Review
This document discusses key chemistry concepts important for understanding biology. It explains that organisms are made of macromolecules, which are made of smaller molecules and atoms. Atoms are the smallest units and are made up of protons, neutrons and electrons. The number and arrangement of protons and neutrons determines an element's identity and properties. Elements can have different isotopes that vary in their number of neutrons. Atoms combine through ionic bonds, where they transfer electrons, or covalent bonds, where they share electrons to form molecules and compounds with unique properties.
Dalton Atomic Theory
John Dalton developed atomic theory in 1808, proposing six main postulates: 1) Matter is made of extremely small indivisible particles called atoms, 2) Atoms of a given element are identical in mass and properties, 3) Atoms of different elements differ in mass and properties, 4) Atoms combine in simple whole number ratios to form chemical compounds, 5) In compounds the relative number and type of atoms is fixed, and 6) Atoms cannot be created, destroyed, or divided in chemical reactions. Dalton's theory did not account for isotopes or allotropes which have atoms of varying masses or properties within an element.
Review question chap4
1. The document contains a student's responses to review questions about various scientific concepts from Chapter 4.
2. The student defines the key differences between scientific and non-scientific disciplines, noting that scientific disciplines are objective and deal with empirical evidence, while non-scientific disciplines are more subjective.
3. The student explains that a hypothesis is a proposed explanation for an observation that can be tested, and that having a hypothesis is important for scientists to determine what experiments to carry out.
Chapter 12
Periodic Table
All information is gather through a vartiry of resources and is only here to help my students with classroom instruction
Chemistry fundamentals part 2
This document discusses the basic chemistry concepts of food science, including:
1. It defines chemical and physical changes, explaining that chemical reactions rearrange atoms while physical changes do not change chemical composition.
2. It describes the parts of an atom including protons, neutrons, and electrons, and how atoms bond through ionic and covalent bonds to form compounds.
3. It explains how to determine the mass of one mole of an element or compound using atomic mass and molar mass.
The Periodic Table
organizing the elements, periodic table, Mendeleev, periodic law, metals, nonmetals, metalloinds, periodic trends
Chemical building blocks
The document contains multiple choice, true/false, and completion questions about the periodic table and properties of elements. It covers topics like Mendeleev's creation of the periodic table based on atomic mass, use of atomic number to organize the table, predicting properties from an element's location, groups having similar properties, atomic structure, states of matter, and nuclear fusion in stars.
Atoms And The Periodic Table
Presentation outlining brief history of atom and periodic table, atomic structure and set up of the periodic table.Follows CXC curriculum gor CSEC
Wonders of periodic table
Periodic Table is the tabular arrangement of all the chemical elements which are organized based on atomic numbers, electronic configurations and existing chemical properties.
Wonders of Periodic Table
If all the elements are arranged in the order of their atomic weights, a periodic repetition of properties is obtained. This is expressed by the law of periodicity.— Dmitry Ivanovich Mendeleev
4.2
The document discusses the organization and properties of elements in the periodic table. Elements are arranged vertically into groups based on their outer electron configuration, and horizontally into periods based on the number of electron shells. Elements within the same group have similar properties because they have the same number of valence electrons, which determines how they bond and their resulting properties. The periodic table is divided into key groups including alkali metals, alkaline earth metals, transition metals, metalloids, nonmetals, and noble gases, with each group having distinct physical and chemical properties.
Periodic Table of Elements - Science 8
The document discusses the periodic table of elements created by Dmitri Mendeleev in 1869. It organizes all known elements based on their atomic structure and chemical properties. Key terms defined include atomic number, symbol, atomic weight, protons, electrons, neutrons, metals, non-metals, metalloids, periods, families, and properties of common element groups such as alkali metals, halogens and noble gases. The periodic table arranges elements horizontally by atomic number and vertically into families with similar traits.
Dalton and lavoisier
John Dalton proposed his atomic theory which included five main ideas: 1) Elements are made of indivisible particles called atoms, 2) Atoms of different elements have different properties and atomic weights, 3) Atoms of the same element are identical, 4) Atoms can combine to form compounds with fixed ratios, 5) Atoms are not created, destroyed, or divided in chemical reactions. Meanwhile, Lavoisier established the law of conservation of mass, which states that mass is neither created nor destroyed in chemical reactions. Together, Dalton and Lavoisier's work established the foundations of modern atomic theory and chemistry.
The atom 1
Chemistry is relevant to everything in our lives. Matter is neither created nor destroyed in chemical reactions. The atom is the smallest particle that cannot be broken down further. Elements are organized in the periodic table based on their atomic number and properties. Elements bond through ionic bonding, where ions with opposite charges attract, or covalent bonding, where atoms share electrons to fill their outer shells.
Ch 5.1,5.2 organizing elements & the periodic table
The document summarizes key aspects of the periodic table, including how Mendeleev organized the elements and used the periodic table to predict undiscovered elements. It describes the modern periodic table as arranging elements by atomic number in rows called periods and columns called groups, with elements in the same group having similar properties due to their electron configurations. The document also discusses atomic structure including atomic number and mass, and classifies elements as metals, nonmetals, and metalloids based on their physical and chemical properties.
Periodic Table of Elements
The document summarizes key information about the periodic table of elements, including its organization of elements according to atomic number and properties. Elements are grouped into families with similar properties, and the periodic table can be used to predict chemical reactions and properties of elements. Different areas of the periodic table are described, including alkali metals, transition metals, noble gases, and more.
Dalton and bohr - chemistry pro.
John Dalton developed the first modern atomic theory which stated that elements are made of extremely small indivisible particles called atoms. Atoms of a given element are identical but differ from atoms of other elements. Atoms combine in simple whole number ratios to form compounds.
Niels Bohr contributed the Bohr model of the atom which depicted electrons traveling in discrete orbits around the nucleus. He also developed the shell model which explained an element's chemical properties based on its outermost electrons. Bohr received the 1922 Nobel Prize in Physics for his investigations into atomic structure and radiation. He played an important role in the development of quantum mechanics and nuclear physics.
Dalton’s Atomic Theory
This is a summary of Dalton's Atomic theory. Based from Ma'am Andaya's Handout and the Cracolice Book.
What's hot (20)
Ch 5.1,5.2 organizing elements & the periodic table
Ch 5.1,5.2 organizing elements & the periodic table
Similar to Isotopes
Chapter 2 form 4
- Matter is composed of particles called atoms and molecules. Atoms are the smallest particles of elements, while molecules contain two or more bonded atoms.
- The kinetic theory of matter describes the states of matter based on particle motion. Solids have fixed shapes, liquids have mobile particles that follow container shapes, and gases have freely moving particles.
- The atomic structure has been discovered through the work of scientists like Dalton, Thomson, Rutherford, Bohr, and Chadwick. Modern atomic theory includes electrons orbiting a nucleus of protons and neutrons.
- Isotopes are atoms of the same element with different numbers of neutrons. Isotopes have identical chemical properties but different physical properties and masses
Chapter 2 form 4
- Matter is composed of particles called atoms and molecules. Atoms are the smallest particles that make up elements, and molecules are made of two or more bonded atoms.
- The structure of the atom has been discovered over time by scientists like Dalton, Thomson, Rutherford, Bohr, and Chadwick. We now know atoms have a tiny, dense nucleus containing protons and neutrons, surrounded by electrons.
- Isotopes are atoms of the same element with different numbers of neutrons. Some isotopes are unstable and radioactive, while others are stable. Radioactive isotopes have important applications in medicine, agriculture, and industry.
Chemical Reactions CB
This document provides an overview of chemistry concepts including:
- Atoms are made of protons, neutrons, and electrons. Protons and neutrons are in the nucleus while electrons orbit around it.
- Elements are substances made of only one type of atom. Compounds are formed when elements combine via ionic or covalent bonds.
- Dmitri Mendeleev is credited with creating the first recognizable periodic table in 1869, which organized elements by atomic mass and predicted new elements.
- Chemical reactions involve changes in atoms or molecules and can be identified by physical changes like temperature, color, or bubbling. Reaction rates depend on factors like temperature, particle size, and stirring.
Chemistry chapter 3 number2
The document discusses the key concepts of elements, atoms, ions, and the periodic table. It covers early atomic theories proposed by scientists like Dalton, Thomson, and Rutherford. Key discoveries included that atoms are made up of a tiny, dense nucleus surrounded by electrons. The periodic table organizes elements by increasing atomic number and groups elements with similar properties together. Elements can form ions by gaining or losing electrons to become charged particles like cations and anions. Ionic compounds are formed from the attraction between oppositely charged ions.
Atom inside out
This document provides an overview of the history and development of the atomic theory. It discusses early Greek philosophers like Democritus who proposed that all matter is composed of indivisible atoms. Later, scientists like John Dalton developed atomic theory further by proposing that atoms are tiny, indivisible particles that combine to form all substances. The document then outlines evidence for subatomic particles like J.J. Thomson's discovery of electrons and Rutherford's discovery of the nucleus. It defines key subatomic particles like protons, neutrons, and electrons and how they combine to form different atoms and isotopes.
atom and atomic theory chemistryxxxx.ppt
Atoms are the fundamental units that make up elements. John Dalton proposed the atomic theory which states that elements are made of atoms and atoms of the same element are identical. Atoms are made up of a nucleus containing protons and neutrons, surrounded by electrons. The discovery of the electron, proton, neutron, and development of quantum theory led to modern atomic structure and periodic table. The periodic table organizes elements based on atomic structure including atomic number and trends in properties.
Periodic table
The document summarizes key concepts about the periodic table of elements, including how it organizes the 118 known elements according to their atomic structure and properties. Elements are classified into families based on their valence electrons and include metals, non-metals, metalloids and noble gases. The periodic table provides a way to predict an element's properties and reactivity.
Isotopes and Radioactive Decat
This document discusses isotopes and radioactive decay. It defines isotopes as forms of a chemical element with the same number of protons but different numbers of neutrons. It describes the history of discoveries in radioactivity by Henri Becquerel, Frederick Soddy, and Ernest Rutherford. It discusses the types of radioactive particles (alpha, beta, gamma rays), their properties, and how radioactive decay occurs. It also covers radioactive decay rates, units of radioactivity like curies, and the concept of half-life.
Minooka - Elements Part 2
Atoms are the smallest particles of elements that retain their chemical properties. Atoms consist of protons, neutrons, and electrons. John Dalton proposed his atomic theory in 1808, stating that all matter is made of indivisible atoms, atoms of the same element are identical, and atoms combine in simple whole number ratios. In the early 1900s, experiments showed that atoms have a small, dense nucleus surrounded by electrons, and electrons can exist in certain energy levels or orbits around the nucleus.
Atomic Structure.ppt
1) Early philosophers like Democritus proposed the idea of atoms, though he lacked evidence. John Dalton's atomic theory in the 1800s outlined four main points including that atoms are indivisible and combine in whole number ratios.
2) J.J. Thompson's cathode ray tube experiments in the late 1800s led him to discover the electron and propose the plum pudding model of the atom.
3) Ernest Rutherford's gold foil experiment at the turn of the century showed that the atom has a small, dense nucleus through rare, large deflections of alpha particles. This disproved the plum pudding model.
3.-Atoms-Molecules-and-Ions.pdf
The document summarizes key concepts in atomic theory and structure:
- Early atomic theory proposed atoms as indivisible particles, but experiments showed atoms have internal structure including a small, dense nucleus and orbiting electrons.
- Atoms are composed of protons, neutrons, and electrons. The number of protons defines an element and is its atomic number. Isotopes differ in their number of neutrons.
- The periodic table organizes elements based on atomic structure, with elements in the same group having similar properties. Metals are on the left, nonmetals on the right, and metalloids in between.
- Compounds are formed by the combination of elements. Molecular compounds contain molecules
Chapter 4 Pp
Defining the atom,structure of the atom, rutherfords gold foil experiment, distinguishing among atoms, mass number, atomic number, isotopes
Ch 4 power point 08 09
This document provides a summary of chapter 4 on atomic structure:
1. It discusses early atomic theories from Democritus and Dalton, including Dalton's four postulates that atoms are indivisible, identical for a given element, combine in fixed ratios, and reactions involve rearrangement not destruction of atoms.
2. It describes the discovery of subatomic particles including electrons, protons, and neutrons. The nuclear model places the protons and neutrons in the nucleus with electrons orbiting.
3. Key terms are defined including atomic number, mass number, and isotopes. Isotopes are varieties of the same element that differ in neutron number.
Periodic table
The periodic table organizes the 118 known chemical elements. It arranges them by atomic number and properties, allowing scientists to predict elements' characteristics. Elements are substances made of only one type of atom, while compounds contain two or more elements chemically bonded together. The periodic table groups elements into blocks by the number of electrons in their outer shell, with metals generally on the left and nonmetals on the right. It provides a wealth of information about each element and their patterns of behavior.
structure of atom
The document provides an overview of key concepts in medical physics including:
- The proton has a mass of one atomic mass unit and a positive charge. Neutrons are electrically neutral.
- Atoms are composed of a nucleus containing protons and neutrons surrounded by electrons. Electrons are arranged in shells and their configuration determines an element's properties.
- The three states of matter - solids, liquids, gases - can be distinguished based on the strength of cohesive and kinetic forces between molecules. Heat is transferred between objects via conduction, convection and radiation.
structure of atom
The document provides an overview of key concepts in medical physics including:
- The proton has a mass of one atomic mass unit and a positive charge. Neutrons are electrically neutral.
- Atoms are made up of a nucleus containing protons and neutrons surrounded by electrons.
- The number of protons determines the element and isotopes have the same number of protons but different neutrons.
- Materials are classified as conductors, insulators or semiconductors based on their ability to conduct electricity and heat. Heat transfer occurs via conduction, convection or radiation.
Periodic table
The document provides information about the periodic table of elements, including how it organizes the 118 known elements according to their atomic structure and properties. Elements are arranged based on their atomic number and can be grouped into families that show similar traits. The periodic table provides a way to predict chemical behaviors and allows scientists to identify unknown elements based on trends in atomic structure.
Atomic theory presentation finale
The document discusses the history and development of atomic theory from ancient Greek philosophers like Democritus and Leucippus, who first proposed the idea of indivisible particles called atoms, to modern scientists like Dalton, Thomson, Rutherford, and Bohr who contributed key discoveries and models that led to our current understanding. It explains concepts like atoms, elements, atomic number, mass, ions, and different atomic models including the plum pudding, Bohr, and electron cloud models.
Atomic theory presentation finale
The document discusses the history and development of atomic theory from ancient Greek philosophers like Democritus and Leucippus, who first proposed the idea of indivisible particles called atoms, to modern scientists like Dalton, Thomson, Rutherford, and Bohr who contributed key discoveries and models that led to our current understanding. It explains concepts like atoms, elements, isotopes, atomic number, atomic mass, ions, and different atomic models including the plum pudding model, Bohr model, and electron cloud model.
Atomic physics=Lectures from Dr. Parvez Ahmed Asstt. Prof., at INMAS, Rajshah...
The document provides information on various chemistry concepts including:
- Types of radioactive decay including beta decay where a proton is added or removed, and alpha decay.
- Basic terms like atoms, elements, molecules, compounds, mixtures, and electron volts.
- Properties of metals including conduction electrons and crystalline structure.
- Classification of elements as light, medium, or heavy.
- The electromagnetic spectrum and different types of spectroscopy used to study spectra.
- The periodic table organized elements into groups based on recurring chemical and physical properties. Key groups include alkali metals, alkaline earth metals, transition metals, halogens and noble gases.
- Unstable and radioactive elements including naturally occurring
Similar to Isotopes (20)
Atomic physics=Lectures from Dr. Parvez Ahmed Asstt. Prof., at INMAS, Rajshah...
Atomic physics=Lectures from Dr. Parvez Ahmed Asstt. Prof., at INMAS, Rajshah...
Recently uploaded
PCOS corelations and management through Ayurveda.
This presentation includes basic of PCOS their pathology and treatment and also Ayurveda correlation of PCOS and Ayurvedic line of treatment mentioned in classics.
Main Java[All of the Base Concepts}.docx
This is part 1 of my Java Learning Journey. This Contains Custom methods, classes, constructors, packages, multithreading , try- catch block, finally block and more.
BBR 2024 Summer Sessions Interview Training
Qualitative research interview training by Professor Katrina Pritchard and Dr Helen Williams
How to Manage Your Lost Opportunities in Odoo 17 CRM
Odoo 17 CRM allows us to track why we lose sales opportunities with "Lost Reasons." This helps analyze our sales process and identify areas for improvement. Here's how to configure lost reasons in Odoo 17 CRM
Executive Directors Chat Leveraging AI for Diversity, Equity, and Inclusion
Let’s explore the intersection of technology and equity in the final session of our DEI series. Discover how AI tools, like ChatGPT, can be used to support and enhance your nonprofit's DEI initiatives. Participants will gain insights into practical AI applications and get tips for leveraging technology to advance their DEI goals.
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...National Information Standards Organization (NISO)
This presentation was provided by Steph Pollock of The American Psychological Association’s Journals Program, and Damita Snow, of The American Society of Civil Engineers (ASCE), for the initial session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session One: 'Setting Expectations: a DEIA Primer,' was held June 6, 2024.How to Build a Module in Odoo 17 Using the Scaffold Method
Odoo provides an option for creating a module by using a single line command. By using this command the user can make a whole structure of a module. It is very easy for a beginner to make a module. There is no need to make each file manually. This slide will show how to create a module using the scaffold method.
How to Fix the Import Error in the Odoo 17
An import error occurs when a program fails to import a module or library, disrupting its execution. In languages like Python, this issue arises when the specified module cannot be found or accessed, hindering the program's functionality. Resolving import errors is crucial for maintaining smooth software operation and uninterrupted development processes.
South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)Academy of Science of South Africa
A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.The simplified electron and muon model, Oscillating Spacetime: The Foundation...
Discover the Simplified Electron and Muon Model: A New Wave-Based Approach to Understanding Particles delves into a groundbreaking theory that presents electrons and muons as rotating soliton waves within oscillating spacetime. Geared towards students, researchers, and science buffs, this book breaks down complex ideas into simple explanations. It covers topics such as electron waves, temporal dynamics, and the implications of this model on particle physics. With clear illustrations and easy-to-follow explanations, readers will gain a new outlook on the universe's fundamental nature.
Community pharmacy- Social and preventive pharmacy UNIT 5
Covered community pharmacy topic of the subject Social and preventive pharmacy for Diploma and Bachelor of pharmacy
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
This Dissertation explores the particular circumstances of Mirzapur, a region located in the
core of India. Mirzapur, with its varied terrains and abundant biodiversity, offers an optimal
environment for investigating the changes in vegetation cover dynamics. Our study utilizes
advanced technologies such as GIS (Geographic Information Systems) and Remote sensing to
analyze the transformations that have taken place over the course of a decade.
The complex relationship between human activities and the environment has been the focus
of extensive research and worry. As the global community grapples with swift urbanization,
population expansion, and economic progress, the effects on natural ecosystems are becoming
more evident. A crucial element of this impact is the alteration of vegetation cover, which plays a
significant role in maintaining the ecological equilibrium of our planet.Land serves as the foundation for all human activities and provides the necessary materials for
these activities. As the most crucial natural resource, its utilization by humans results in different
'Land uses,' which are determined by both human activities and the physical characteristics of the
land.
The utilization of land is impacted by human needs and environmental factors. In countries
like India, rapid population growth and the emphasis on extensive resource exploitation can lead
to significant land degradation, adversely affecting the region's land cover.
Therefore, human intervention has significantly influenced land use patterns over many
centuries, evolving its structure over time and space. In the present era, these changes have
accelerated due to factors such as agriculture and urbanization. Information regarding land use and
cover is essential for various planning and management tasks related to the Earth's surface,
providing crucial environmental data for scientific, resource management, policy purposes, and
diverse human activities.
Accurate understanding of land use and cover is imperative for the development planning
of any area. Consequently, a wide range of professionals, including earth system scientists, land
and water managers, and urban planners, are interested in obtaining data on land use and cover
changes, conversion trends, and other related patterns. The spatial dimensions of land use and
cover support policymakers and scientists in making well-informed decisions, as alterations in
these patterns indicate shifts in economic and social conditions. Monitoring such changes with the
help of Advanced technologies like Remote Sensing and Geographic Information Systems is
crucial for coordinated efforts across different administrative levels. Advanced technologies like
Remote Sensing and Geographic Information Systems
9
Changes in vegetation cover refer to variations in the distribution, composition, and overall
structure of plant communities across different temporal and spatial scales. These changes can
occur natural.
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
Certified as an ISO/IEC 27001: Information Security Management Systems (ISMS) Lead Implementer, Data Protection Officer, and Cyber Risks Analyst, Denis brings a heightened focus on data security, privacy, and cyber resilience to every endeavor.
His expertise extends across a diverse spectrum of reporting, database, and web development applications, underpinned by an exceptional grasp of data storage and virtualization technologies. His proficiency in application testing, database administration, and data cleansing ensures seamless execution of complex projects.
What sets Denis apart is his comprehensive understanding of Business and Systems Analysis technologies, honed through involvement in all phases of the Software Development Lifecycle (SDLC). From meticulous requirements gathering to precise analysis, innovative design, rigorous development, thorough testing, and successful implementation, he has consistently delivered exceptional results.
Throughout his career, he has taken on multifaceted roles, from leading technical project management teams to owning solutions that drive operational excellence. His conscientious and proactive approach is unwavering, whether he is working independently or collaboratively within a team. His ability to connect with colleagues on a personal level underscores his commitment to fostering a harmonious and productive workplace environment.
Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
-------------------------------------------------------------------------------
Find out more about ISO training and certification services
Training: ISO/IEC 27001 Information Security Management System - EN | PECB
ISO/IEC 42001 Artificial Intelligence Management System - EN | PECB
General Data Protection Regulation (GDPR) - Training Courses - EN | PECB
Webinars: https://pecb.com/webinars
Article: https://pecb.com/article
-------------------------------------------------------------------------------
For more information about PECB:
Website: https://pecb.com/
LinkedIn: https://www.linkedin.com/company/pecb/
Facebook: https://www.facebook.com/PECBInternational/
Slideshare: http://www.slideshare.net/PECBCERTIFICATION
The Diamonds of 2023-2024 in the IGRA collection
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
Advanced Java[Extra Concepts, Not Difficult].docx
This is part 2 of my Java Learning Journey. This contains Hashing, ArrayList, LinkedList, Date and Time Classes, Calendar Class and more.
Recently uploaded (20)
How to Manage Your Lost Opportunities in Odoo 17 CRM
How to Manage Your Lost Opportunities in Odoo 17 CRM
Executive Directors Chat Leveraging AI for Diversity, Equity, and Inclusion
Executive Directors Chat Leveraging AI for Diversity, Equity, and Inclusion
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
How to Build a Module in Odoo 17 Using the Scaffold Method
How to Build a Module in Odoo 17 Using the Scaffold Method
South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)
The simplified electron and muon model, Oscillating Spacetime: The Foundation...
The simplified electron and muon model, Oscillating Spacetime: The Foundation...
Community pharmacy- Social and preventive pharmacy UNIT 5
Community pharmacy- Social and preventive pharmacy UNIT 5
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
Liberal Approach to the Study of Indian Politics.pdf
Liberal Approach to the Study of Indian Politics.pdf
Isotopes
- 1. CHEMICAL ELEMENTS AND THE ISOTOPES ALBERT REJAS
- 2. ISOTOPES are atom species of the same chemical element that have different masses. they have the same number of protons and electrons but a different number of neutrons.
- 3. - the element hydrogen has three isotopes. the nucleus of a "normal" hydrogen atom has one proton. hydrogen's other far less abundant isotopes are deuterium (1 proton and 1 neutron) and tritium (1 proton and 2 neutron). - for the most part, all of the isotopes of a particular element behave the same way in chemical reaction.
- 5. - some isotopes are radioactive, "can decay" by emitting energy in the form of some type of radiation. Atoms that decay typically lose one or more proton(s) and/or neutron(s) converting the atom to a different isotope or even a different element. - isotopes that are not radioactive are called "stable isotopes"
- 6. •where do these different isotopes come from ? -astronomers believe that the only elements created in the big bang were various isotopes of hydrogen, helium, and probably lithium, beryllium and boron. since then, enormous supernova explosions have created the remaining elements, including most of their isotopes. some isotopes form when high-energy cosmic rays collide with various atoms. isotopes are also created when other radioactive isotopes decay.