Elements and Atoms.ppt
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This document provides an overview of atoms and elements. It defines atoms as the building blocks of matter and notes they consist of protons, neutrons, and electrons. Elements are the basic substances that cannot be broken down further by chemical means. The document explains atomic structure using two models: the Bohr model which depicts the atom's particles, and Lewis dot structures which represent the outer shell electrons. Examples of drawing lithium in each model are provided. Readers are then instructed to create Bohr and Lewis dot structure models of the first 20 elements using physical representations.
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Elements and Atoms.pptx
This document provides an overview of atoms and elements for an 8th grade chemistry class. It defines key terms like matter, atoms and elements. Atoms are made up of protons, neutrons and electrons. Elements are the building blocks of all matter, made of atoms of the same type. The document explains atomic structure using the Bohr model, which depicts the nucleus and electron shells, and the Lewis dot structure, which represents outer shell electrons. Students are assigned an activity to build physical models and drawings of the first 20 elements using beans to represent subatomic particles and the periodic table.
Elements and atoms
This document provides an overview of atoms and elements. It defines atoms as the building blocks of matter and notes they consist of protons, neutrons, and electrons. Electrons orbit the nucleus, which contains protons and neutrons. Elements are made of atoms of the same type and can be represented on the periodic table. The document then describes Bohr models for representing atomic structure and shows how to draw Bohr models and Lewis dot structures for specific elements like lithium.
Elements and Atoms.ppt
This document provides an overview of atoms and elements. It discusses the parts of an atom including protons, neutrons and electrons. Atoms are the building blocks of elements, which are listed on the periodic table. The periodic table provides information like atomic number and mass. Electrons occupy shells or energy levels, and the outermost electrons are called valence electrons. Examples are provided for drawing lithium atoms and its Lewis dot structure.
Elements and atoms
1) An atom is the basic building block of matter and is composed of protons, neutrons, and electrons. Protons and neutrons are located in the center nucleus, while electrons orbit around the nucleus.
2) Elements are substances made of only one type of atom. They are the basic building blocks that make up all molecules. The periodic table lists all known elements and their properties.
3) There are two common models of atomic structure - the Bohr model which depicts all subatomic particles, and the Lewis dot structure which represents only the outer shell electrons. Electrons are arranged into energy levels and shells around the nucleus according to specific rules.
la historia del atomo y su composicion elementos
- An atom is the basic building block of matter and is composed of protons, neutrons and electrons. Protons and neutrons are located in the center of the atom, called the nucleus, while electrons orbit around the nucleus.
- Elements are substances made of only one type of atom. They are the basic building blocks that make up all matter. The periodic table lists all known elements and provides information about their atomic structure.
- Atoms can be represented by two models - the Bohr model which depicts all subatomic particles, and the Lewis dot structure which shows only the outer shell electrons through dots or lines around the element's symbol.
Elements and Atoms.ppt
This document provides an overview of atoms and elements. It defines atoms as the building blocks of matter and notes they contain protons, neutrons, and electrons. Elements are made of the same type of atom and are the basic substances that can be combined to form all chemical compounds and molecules. The periodic table lists all known elements and provides each element's atomic number, symbol, name, and atomic mass. The document also describes two common atomic models - the Bohr model, which depicts the subatomic particles within an atom, and the Lewis dot structure, which represents only the outer shell electrons through dots or lines.
Elements and Atoms
- Matter is made of atoms, which are the building blocks of all matter. Atoms contain protons, neutrons, and electrons. Protons and neutrons are located in the center nucleus, and electrons orbit the nucleus.
- Elements are the basic substances that atoms are made of. All elements are made up of the same parts - protons, neutrons, and electrons. The periodic table lists all known elements. It provides information like each element's symbol, atomic number, and atomic mass.
- There are two common models for representing atoms - the Bohr model, which shows all subatomic particles, and the Lewis dot structure, which shows only the outermost shell of electrons. These models can be used to
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The document discusses the basic building blocks of matter at the atomic level. It explains that atoms are made up of protons, neutrons, and electrons. Protons are positively charged and found in the atom's nucleus along with neutrons, which have no charge. Electrons are negatively charged and orbit the nucleus. It provides examples of hydrogen, oxygen, and sodium atoms, showing their proton, neutron, and electron composition. The atomic number is the number of protons, while the mass number includes protons and neutrons. Atoms can gain or lose electrons to become ions that are electrically charged.
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Elements and Atoms.pptx
This document provides an overview of atoms and elements for an 8th grade chemistry class. It defines key terms like matter, atoms and elements. Atoms are made up of protons, neutrons and electrons. Elements are the building blocks of all matter, made of atoms of the same type. The document explains atomic structure using the Bohr model, which depicts the nucleus and electron shells, and the Lewis dot structure, which represents outer shell electrons. Students are assigned an activity to build physical models and drawings of the first 20 elements using beans to represent subatomic particles and the periodic table.
Elements and atoms
This document provides an overview of atoms and elements. It defines atoms as the building blocks of matter and notes they consist of protons, neutrons, and electrons. Electrons orbit the nucleus, which contains protons and neutrons. Elements are made of atoms of the same type and can be represented on the periodic table. The document then describes Bohr models for representing atomic structure and shows how to draw Bohr models and Lewis dot structures for specific elements like lithium.
Elements and Atoms.ppt
This document provides an overview of atoms and elements. It discusses the parts of an atom including protons, neutrons and electrons. Atoms are the building blocks of elements, which are listed on the periodic table. The periodic table provides information like atomic number and mass. Electrons occupy shells or energy levels, and the outermost electrons are called valence electrons. Examples are provided for drawing lithium atoms and its Lewis dot structure.
Elements and atoms
1) An atom is the basic building block of matter and is composed of protons, neutrons, and electrons. Protons and neutrons are located in the center nucleus, while electrons orbit around the nucleus.
2) Elements are substances made of only one type of atom. They are the basic building blocks that make up all molecules. The periodic table lists all known elements and their properties.
3) There are two common models of atomic structure - the Bohr model which depicts all subatomic particles, and the Lewis dot structure which represents only the outer shell electrons. Electrons are arranged into energy levels and shells around the nucleus according to specific rules.
la historia del atomo y su composicion elementos
- An atom is the basic building block of matter and is composed of protons, neutrons and electrons. Protons and neutrons are located in the center of the atom, called the nucleus, while electrons orbit around the nucleus.
- Elements are substances made of only one type of atom. They are the basic building blocks that make up all matter. The periodic table lists all known elements and provides information about their atomic structure.
- Atoms can be represented by two models - the Bohr model which depicts all subatomic particles, and the Lewis dot structure which shows only the outer shell electrons through dots or lines around the element's symbol.
Elements and Atoms.ppt
This document provides an overview of atoms and elements. It defines atoms as the building blocks of matter and notes they contain protons, neutrons, and electrons. Elements are made of the same type of atom and are the basic substances that can be combined to form all chemical compounds and molecules. The periodic table lists all known elements and provides each element's atomic number, symbol, name, and atomic mass. The document also describes two common atomic models - the Bohr model, which depicts the subatomic particles within an atom, and the Lewis dot structure, which represents only the outer shell electrons through dots or lines.
Elements and Atoms
- Matter is made of atoms, which are the building blocks of all matter. Atoms contain protons, neutrons, and electrons. Protons and neutrons are located in the center nucleus, and electrons orbit the nucleus.
- Elements are the basic substances that atoms are made of. All elements are made up of the same parts - protons, neutrons, and electrons. The periodic table lists all known elements. It provides information like each element's symbol, atomic number, and atomic mass.
- There are two common models for representing atoms - the Bohr model, which shows all subatomic particles, and the Lewis dot structure, which shows only the outermost shell of electrons. These models can be used to
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The document discusses the basic building blocks of matter at the atomic level. It explains that atoms are made up of protons, neutrons, and electrons. Protons are positively charged and found in the atom's nucleus along with neutrons, which have no charge. Electrons are negatively charged and orbit the nucleus. It provides examples of hydrogen, oxygen, and sodium atoms, showing their proton, neutron, and electron composition. The atomic number is the number of protons, while the mass number includes protons and neutrons. Atoms can gain or lose electrons to become ions that are electrically charged.
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The document provides instructions for drawing Bohr diagrams to represent atomic structure:
1) Find the element on the periodic table to determine the number of protons and electrons, which is equal to the atomic number.
2) Draw the nucleus and electron shells based on the element's period - the number of shells equals the period number.
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Atoms are composed of a nucleus containing protons and neutrons surrounded by electrons. The nucleus contains most of the atom's mass. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge that balances the atom's overall charge. The number of protons defines an element and is equal to its atomic number. The total number of protons and neutrons is the mass number. Electrons equal the number of protons and determine the atom's chemical properties. Models like the Bohr model depict the atom's structure.
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Atoms are composed of a nucleus containing protons and neutrons surrounded by electrons. The nucleus contains most of the atom's mass. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge that balances the atom's overall charge. The number of protons defines an element and is its atomic number. The total number of protons and neutrons is the mass number. Electrons equal protons in number and determine the atom's chemical properties. Models like the Bohr model depict the arrangement of subatomic particles in atoms.
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Atoms are composed of a nucleus containing protons and neutrons surrounded by electrons. The nucleus contains most of the atom's mass. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge that balances the atom's overall charge. The number of protons defines an element and is equal to its atomic number. The total number of protons and neutrons is the mass number. Electrons equal the number of protons and determine the atom's chemical properties. Models like the Bohr model depict the atom's structure.
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Atoms are composed of a nucleus containing protons and neutrons surrounded by an electron cloud. The nucleus contains positively charged protons and neutral neutrons. Negatively charged electrons reside outside the nucleus in the electron cloud. The number of protons defines the identity of an element and is equal to its atomic number. The total number of protons and neutrons is the mass number. The number of electrons equals the number of protons to maintain electroneutrality. Models such as the Bohr model depict electron arrangement in shells surrounding the nucleus.
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This document is a science project submission by Shaurya Dubey of Class 9th to his teacher Mr. Ankit Prabhakar about elements and atoms. It includes an acknowledgement, introduction, and sections on an atom refresher, elements, atomic models including Bohr's model, and electrons. The project was created as a presentation using different features to fulfill the requirement of creating a presentation on a science topic.
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The document provides instructions for drawing Bohr diagrams to represent atomic structure:
1) Find the element on the periodic table to determine the number of protons and electrons, which is equal to the atomic number.
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3) Add electrons to each shell following the rules that the first shell holds 2 electrons and subsequent shells hold up to 8 electrons, representing the subatomic particle composition of the element.
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The document provides instructions for students, including scheduling a test retake, collecting parent signatures on corrected tests, and completing assignments on atomic structure models and Lewis dot diagrams. Students are also assigned jobs like materials manager and oral presenter for an upcoming lesson. The document quizzes students on electron configuration, ionic and covalent bonding, and using the periodic table to draw Bohr models and Lewis dot diagrams.
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Atomic structure refers to the organization and composition of atoms, which are the basic building blocks of matter. At the center of an atom lies a dense nucleus composed of protons, which carry a positive charge, and neutrons, which are neutral. Surrounding the nucleus are electrons, negatively charged particles, arranged in shells or energy levels. These electrons orbit the nucleus in specific orbits, with each shell capable of holding a certain maximum number of electrons. The arrangement of these subatomic particles determines an atom's properties, including its chemical behavior and reactivity. Quantum mechanics describes the behavior of particles at the atomic level, revealing the probabilistic nature of electron distribution within an atom. Understanding atomic structure is fundamental to fields such as chemistry, physics, and materials science.
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This document provides an overview of physical science concepts related to subatomic particles, the periodic table, oxidation numbers, and Lewis dot diagrams. The key points are:
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3) It defines valence electrons, oxidation numbers, and ionic bonds in chemical compounds.
4) Examples are given of writing chemical symbols, determining valence electrons, and drawing Lewis dot diagrams using the cross method.
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This document provides instructions for drawing Bohr diagrams and Lewis structures. It explains that Bohr diagrams represent atoms by showing electrons arranged in shells around the nucleus, with the number of shells determined by the element's period. Lewis structures represent just the valence electrons of an atom arranged around the element symbol. The document gives step-by-step instructions for drawing diagrams for various elements like carbon, hydrogen, helium, oxygen, aluminum, and potassium. It emphasizes practicing drawing the diagrams for the first 20 elements.
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All matter is composed of atoms, which are the smallest particles that can exist independently and make up every element. Atoms have a nucleus containing protons and neutrons at the center, surrounded by an electron cloud. The number of protons determines the identity of an element. Atoms of the same element can differ in number of neutrons, making them isotopes with different mass numbers. Ions are formed when atoms gain or lose electrons, giving them a positive or negative charge.
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The Rutherford gold foil experiment discovered the atomic nucleus. In this experiment, Rutherford beamed particles at a gold foil and observed some particles bouncing back at large angles, indicating a small, dense nucleus at the center of the atom. Dalton's atomic theory proposed that atoms of different elements can combine in simple whole number ratios to form compounds. Isotopes are atoms that have the same number of protons but different numbers of neutrons, giving them the same atomic number but different atomic mass numbers. The periodic table arranges elements into groups based on repeating properties and allows easy comparison of elemental properties.
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Atoms are composed of a nucleus containing protons and neutrons surrounded by electrons. The nucleus contains most of the atom's mass. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge that balances the atom's overall charge. The number of protons defines an element and is equal to the atomic number. The total number of protons and neutrons is the mass number. Electrons equal the number of protons and determine the atom's chemical properties. Models like the Bohr model depict the arrangement of subatomic particles in atoms.
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Atoms are composed of a nucleus containing protons and neutrons surrounded by electrons. The nucleus contains most of the atom's mass. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge that balances the atom's overall charge. The number of protons defines an element and is equal to its atomic number. The total number of protons and neutrons is the mass number. Electrons equal the number of protons and determine the atom's chemical properties. Models like the Bohr model depict the atom's structure.
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Atoms are composed of a nucleus containing protons and neutrons surrounded by electrons. The nucleus contains most of the atom's mass. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge that balances the atom's overall charge. The number of protons defines an element and is its atomic number. The total number of protons and neutrons is the mass number. Electrons equal protons in number and determine the atom's chemical properties. Models like the Bohr model depict the arrangement of subatomic particles in atoms.
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Atoms are composed of a nucleus containing protons and neutrons surrounded by electrons. The nucleus contains most of the atom's mass. Protons have a positive charge, neutrons have no charge, and electrons have a negative charge that balances the atom's overall charge. The number of protons defines an element and is equal to its atomic number. The total number of protons and neutrons is the mass number. Electrons equal the number of protons and determine the atom's chemical properties. Models like the Bohr model depict the atom's structure.
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Atoms are composed of a nucleus containing protons and neutrons surrounded by an electron cloud. The nucleus contains positively charged protons and neutral neutrons. Negatively charged electrons reside outside the nucleus in the electron cloud. The number of protons defines the identity of an element and is equal to its atomic number. The total number of protons and neutrons is the mass number. The number of electrons equals the number of protons to maintain electroneutrality. Models such as the Bohr model depict electron arrangement in shells surrounding the nucleus.
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The document provides information about atoms and the structure of matter in three sections:
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This document provides information about atomic structure and the development of atomic theory over time. It discusses early Greek philosophers' ideas about atoms and defines key terms. The document then outlines several important scientists' contributions, from Dalton's atomic theory to Bohr's model of the atom to Schrodinger's wave mechanics model. Diagrams illustrate subatomic particles like protons, neutrons, and electrons as well as isotopes and ions. The last part reviews atomic structure concepts and homework.
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spherical shell without any underlying mass. Moreover, a large-scale structure which exploits this solution by assembling
concentrically a number of such topological defects can establish a flat stellar or galactic rotation curve, and can also deflect
light in the same manner as an equipotential (isothermal) sphere. Thus, the need for dark matter or modified gravity theory is
mitigated, at least in part.
Authoring a personal GPT for your research and practice: How we created the Q...
Thematic analysis in qualitative research is a time-consuming and systematic task, typically done using teams. Team members must ground their activities on common understandings of the major concepts underlying the thematic analysis, and define criteria for its development. However, conceptual misunderstandings, equivocations, and lack of adherence to criteria are challenges to the quality and speed of this process. Given the distributed and uncertain nature of this process, we wondered if the tasks in thematic analysis could be supported by readily available artificial intelligence chatbots. Our early efforts point to potential benefits: not just saving time in the coding process but better adherence to criteria and grounding, by increasing triangulation between humans and artificial intelligence. This tutorial will provide a description and demonstration of the process we followed, as two academic researchers, to develop a custom ChatGPT to assist with qualitative coding in the thematic data analysis process of immersive learning accounts in a survey of the academic literature: QUAL-E Immersive Learning Thematic Analysis Helper. In the hands-on time, participants will try out QUAL-E and develop their ideas for their own qualitative coding ChatGPT. Participants that have the paid ChatGPT Plus subscription can create a draft of their assistants. The organizers will provide course materials and slide deck that participants will be able to utilize to continue development of their custom GPT. The paid subscription to ChatGPT Plus is not required to participate in this workshop, just for trying out personal GPTs during it.
THEMATIC APPERCEPTION TEST(TAT) cognitive abilities, creativity, and critic...
THEMATIC APPERCEPTION TEST(TAT) cognitive abilities, creativity, and critic...Abdul Wali Khan University Mardan,kP,Pakistan
hematic appreciation test is a psychological assessment tool used to measure an individual's appreciation and understanding of specific themes or topics. This test helps to evaluate an individual's ability to connect different ideas and concepts within a given theme, as well as their overall comprehension and interpretation skills. The results of the test can provide valuable insights into an individual's cognitive abilities, creativity, and critical thinking skillsUnlocking the mysteries of reproduction: Exploring fecundity and gonadosomati...
The pygmy halfbeak Dermogenys colletei, is known for its viviparous nature, this presents an intriguing case of relatively low fecundity, raising questions about potential compensatory reproductive strategies employed by this species. Our study delves into the examination of fecundity and the Gonadosomatic Index (GSI) in the Pygmy Halfbeak, D. colletei (Meisner, 2001), an intriguing viviparous fish indigenous to Sarawak, Borneo. We hypothesize that the Pygmy halfbeak, D. colletei, may exhibit unique reproductive adaptations to offset its low fecundity, thus enhancing its survival and fitness. To address this, we conducted a comprehensive study utilizing 28 mature female specimens of D. colletei, carefully measuring fecundity and GSI to shed light on the reproductive adaptations of this species. Our findings reveal that D. colletei indeed exhibits low fecundity, with a mean of 16.76 ± 2.01, and a mean GSI of 12.83 ± 1.27, providing crucial insights into the reproductive mechanisms at play in this species. These results underscore the existence of unique reproductive strategies in D. colletei, enabling its adaptation and persistence in Borneo's diverse aquatic ecosystems, and call for further ecological research to elucidate these mechanisms. This study lends to a better understanding of viviparous fish in Borneo and contributes to the broader field of aquatic ecology, enhancing our knowledge of species adaptations to unique ecological challenges.
Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...
Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...University of Maribor
Slides from talk:
Aleš Zamuda: Remote Sensing and Computational, Evolutionary, Supercomputing, and Intelligent Systems.
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Inter-Society Networking Panel GRSS/MTT-S/CIS Panel Session: Promoting Connection and Cooperation
https://www.etran.rs/2024/en/home-english/ESA/ACT Science Coffee: Diego Blas - Gravitational wave detection with orbita...
ESA/ACT Science Coffee: Diego Blas - Gravitational wave detection with orbita...Advanced-Concepts-Team
Presentation in the Science Coffee of the Advanced Concepts Team of the European Space Agency on the 07.06.2024.
Speaker: Diego Blas (IFAE/ICREA)
Title: Gravitational wave detection with orbital motion of Moon and artificial
Abstract:
In this talk I will describe some recent ideas to find gravitational waves from supermassive black holes or of primordial origin by studying their secular effect on the orbital motion of the Moon or satellites that are laser ranged.The debris of the ‘last major merger’ is dynamically young
The Milky Way’s (MW) inner stellar halo contains an [Fe/H]-rich component with highly eccentric orbits, often referred to as the
‘last major merger.’ Hypotheses for the origin of this component include Gaia-Sausage/Enceladus (GSE), where the progenitor
collided with the MW proto-disc 8–11 Gyr ago, and the Virgo Radial Merger (VRM), where the progenitor collided with the
MW disc within the last 3 Gyr. These two scenarios make different predictions about observable structure in local phase space,
because the morphology of debris depends on how long it has had to phase mix. The recently identified phase-space folds in Gaia
DR3 have positive caustic velocities, making them fundamentally different than the phase-mixed chevrons found in simulations
at late times. Roughly 20 per cent of the stars in the prograde local stellar halo are associated with the observed caustics. Based
on a simple phase-mixing model, the observed number of caustics are consistent with a merger that occurred 1–2 Gyr ago.
We also compare the observed phase-space distribution to FIRE-2 Latte simulations of GSE-like mergers, using a quantitative
measurement of phase mixing (2D causticality). The observed local phase-space distribution best matches the simulated data
1–2 Gyr after collision, and certainly not later than 3 Gyr. This is further evidence that the progenitor of the ‘last major merger’
did not collide with the MW proto-disc at early times, as is thought for the GSE, but instead collided with the MW disc within
the last few Gyr, consistent with the body of work surrounding the VRM.
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptx
Although Artemia has been known to man for centuries, its use as a food for the culture of larval organisms apparently began only in the 1930s, when several investigators found that it made an excellent food for newly hatched fish larvae (Litvinenko et al., 2023). As aquaculture developed in the 1960s and ‘70s, the use of Artemia also became more widespread, due both to its convenience and to its nutritional value for larval organisms (Arenas-Pardo et al., 2024). The fact that Artemia dormant cysts can be stored for long periods in cans, and then used as an off-the-shelf food requiring only 24 h of incubation makes them the most convenient, least labor-intensive, live food available for aquaculture (Sorgeloos & Roubach, 2021). The nutritional value of Artemia, especially for marine organisms, is not constant, but varies both geographically and temporally. During the last decade, however, both the causes of Artemia nutritional variability and methods to improve poorquality Artemia have been identified (Loufi et al., 2024).
Brine shrimp (Artemia spp.) are used in marine aquaculture worldwide. Annually, more than 2,000 metric tons of dry cysts are used for cultivation of fish, crustacean, and shellfish larva. Brine shrimp are important to aquaculture because newly hatched brine shrimp nauplii (larvae) provide a food source for many fish fry (Mozanzadeh et al., 2021). Culture and harvesting of brine shrimp eggs represents another aspect of the aquaculture industry. Nauplii and metanauplii of Artemia, commonly known as brine shrimp, play a crucial role in aquaculture due to their nutritional value and suitability as live feed for many aquatic species, particularly in larval stages (Sorgeloos & Roubach, 2021).
Bob Reedy - Nitrate in Texas Groundwater.pdf
Presented at June 6-7 Texas Alliance of Groundwater Districts Business Meeting
SAR of Medicinal Chemistry 1st by dk.pdf
In this presentation include the prototype drug SAR on thus or with their examples .
Syllabus of Second Year B. Pharmacy
2019 PATTERN.
8.Isolation of pure cultures and preservation of cultures.pdf
Isolation of pure culture, its various method.
Describing and Interpreting an Immersive Learning Case with the Immersion Cub...
Current descriptions of immersive learning cases are often difficult or impossible to compare. This is due to a myriad of different options on what details to include, which aspects are relevant, and on the descriptive approaches employed. Also, these aspects often combine very specific details with more general guidelines or indicate intents and rationales without clarifying their implementation. In this paper we provide a method to describe immersive learning cases that is structured to enable comparisons, yet flexible enough to allow researchers and practitioners to decide which aspects to include. This method leverages a taxonomy that classifies educational aspects at three levels (uses, practices, and strategies) and then utilizes two frameworks, the Immersive Learning Brain and the Immersion Cube, to enable a structured description and interpretation of immersive learning cases. The method is then demonstrated on a published immersive learning case on training for wind turbine maintenance using virtual reality. Applying the method results in a structured artifact, the Immersive Learning Case Sheet, that tags the case with its proximal uses, practices, and strategies, and refines the free text case description to ensure that matching details are included. This contribution is thus a case description method in support of future comparative research of immersive learning cases. We then discuss how the resulting description and interpretation can be leveraged to change immersion learning cases, by enriching them (considering low-effort changes or additions) or innovating (exploring more challenging avenues of transformation). The method holds significant promise to support better-grounded research in immersive learning.
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The binding of cosmological structures by massless topological defects
The binding of cosmological structures by massless topological defects
Authoring a personal GPT for your research and practice: How we created the Q...
Authoring a personal GPT for your research and practice: How we created the Q...
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Unlocking the mysteries of reproduction: Exploring fecundity and gonadosomati...
Unlocking the mysteries of reproduction: Exploring fecundity and gonadosomati...
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ESA/ACT Science Coffee: Diego Blas - Gravitational wave detection with orbita...
ESA/ACT Science Coffee: Diego Blas - Gravitational wave detection with orbita...
The debris of the ‘last major merger’ is dynamically young
The debris of the ‘last major merger’ is dynamically young
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptx
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptx
8.Isolation of pure cultures and preservation of cultures.pdf
8.Isolation of pure cultures and preservation of cultures.pdf
Describing and Interpreting an Immersive Learning Case with the Immersion Cub...
Describing and Interpreting an Immersive Learning Case with the Immersion Cub...
Basics of crystallography, crystal systems, classes and different forms
Basics of crystallography, crystal systems, classes and different forms
Elements and Atoms.ppt
- 2. Created by G.Baker www.thesciencequeen.net An atom refresher • Matter is anything that takes up space and has mass. • All matter is made of atoms • Atoms are the building blocks of matter, sort of how bricks are the building blocks of houses.
- 3. Created by G.Baker www.thesciencequeen.net An atom refresher • An atom has three parts: • Proton = positive • Neutron = no charge • Electron = negative • The proton & neutron are found in the center of the atom, a place called the nucleus. • The electrons orbit the nucleus. Picture from http://education.jlab.org/qa/atom_model_03.gif
- 4. Created by G.Baker www.thesciencequeen.net What are elements? • Elements are the alphabet to the language of molecules. • To make molecules, you must have elements. • Elements are made of atoms. While the atoms may have different weights and organization, they are all built in the same way. Information & picture from Chem4kids at http://www.chem4kids.com/files/atom_structure.html
- 5. Created by G.Baker www.thesciencequeen.net Graphic from http://education.jlab.org/atomtour/fact2.html
- 6. Created by G.Baker www.thesciencequeen.net More about Elements.. • Elements are the building blocks of all matter. • The periodic table is a list of all of the elements that can build matter. It’s a little like the alphabet of chemistry. • The periodic table tells us several things…
- 7. Created by G.Baker www.thesciencequeen.net Periodic Table 8 O Oxygen 16 Atomic Number: Number of protons and it is also the number of electrons in an atom of an element.Element’s Symbol: An abbreviation for the element. Elements Name Atomic Mass/Weight: Number of protons + neutrons.
- 8. Created by G.Baker www.thesciencequeen.net Atom Models • There are two models of the atoms we will be using in class. • Bohr Model • Lewis Dot Structure
- 9. Created by G.Baker www.thesciencequeen.net Bohr Model • The Bohr Model shows all of the particles in the atom. • In the center is circles. Each circle represents a single neutron or proton. Protons should have a plus or P written on them. Neutrons should be blank or have an N. • In a circle around the nucleus are the electrons. Electrons should have a minus sign or an e. + + - -
- 10. Created by G.Baker www.thesciencequeen.net Electrons have special rules…. • You can’t just shove all of the electrons into the first orbit of an electron. • Electrons live in something called shells or energy levels. • Only so many can be in any certain shell.
- 11. Created by G.Baker www.thesciencequeen.net Nucleus 1st shell 2nd shell 3rd shell Adapted from http://www.sciencespot.net/Media/atomsfam.pdf
- 12. Created by G.Baker www.thesciencequeen.net Electrons have special rules…. • You can’t just shove all of the electrons into the first orbit of an electron. • Electrons live in something called shells or energy levels. • Only so many can be in any certain shell. • The electrons in the outer most shell of any element are called valance electrons.
- 13. Created by G.Baker www.thesciencequeen.net So let’s try it…. • How to draw a Lithium atom • First, look at the Periodic Table • Second, determine the number of protons (Look @ the atomic number) • Then determine the number of neutrons (Atomic mass – atomic number) • Then determine the number of electrons (Look @ the atomic number) 3 Li Lithium 7
- 14. Created by G.Baker www.thesciencequeen.net So let’s try it…. 3 Li Lithium 7 + + + Protons = 3 Neutrons = 4 (7-3=4) - - - Electrons = 3 2 in the 1st shell, 1 in the 2nd shell
- 15. Created by G.Baker www.thesciencequeen.net Lewis Dot Structure • The Lewis Dot Structure is a bit different from the Bohr model. • It only shows the element symbol and it’s outer most electron shell. O • • • • • • + + + + + + + + - - - - - - - -
- 16. Created by G.Baker www.thesciencequeen.net How to… 1. Write the symbol. 2. Start on the right hand side, working your way clockwise around the symbol. 3. Try Lithium
- 17. Created by G.Baker www.thesciencequeen.net Your activity… • Using the beans (Lentils are electrons, Lima Beans are protons, and kidney beans are neutrons), create a Bohr model , and then a Lewis dot structure model of each of the first 20 elements. After you have created each model, draw each model on your chart. • Hint to make a chart, use a burrito fold, then fold the top down by 1 ½ inches. Unfold, you now have 3 columns. Label the columns: element, Bohr model, Lewis Dot.