Physical Science 3.1 : Elements
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This document describes elements and their properties. It defines elements as pure substances made of atoms that cannot be broken down further. Elements can be identified by their unique set of physical and chemical properties, such as melting point, density, conductivity, and reactivity. Elements are classified into three main categories: metals, nonmetals, and metalloids, based on properties like appearance, malleability, conductivity, and reactivity. Examples of identifying properties and classifications of specific elements like helium, krypton, nickel, cobalt, iron, gold, sulfur, and silicon are provided.
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2. Lab equipment - Lists and describes common lab equipment used for measuring, heating, mixing substances.
3. Measurement - Defines mass and weight, and how they are measured.
4. SI units - Explains the International System of Units for different quantities.
5. Energy - Covers types of energy and the SI unit.
6. Magnetism - Discusses properties and types of magnets.
7. Microscopes - Details parts and
Metals - Physical Properties
The document discusses the key properties of metals and alloys. It covers the physical properties of metals, metallic bonding, and how alloys have different properties than their constituent elements due to their crystalline structure. The lesson objectives are to describe the properties of metals and alloys, explain metallic bonding, and why alloys are less malleable than pure metals.
Ch06 elements, compounds & mixtures
This document discusses the classification of matter into elements, compounds, and mixtures. It defines elements as the simplest form of matter that cannot be broken down further through chemical reactions. Compounds are formed via chemical reactions and consist of two or more chemically bonded elements. Mixtures are physical combinations of elements and/or compounds that are not chemically bonded and can be separated using physical means. The document provides examples and properties to distinguish among these three classifications of matter.
Resumen de science
The history of atomic theory began in 600 BC when Thales discovered static electricity, and Democritus proposed the idea of atoms. In the 1800s, Dalton performed experiments leading to his atomic theory. In the late 1800s and early 1900s, discoveries were made about the electron and structure of the atom, including the nucleus. Elements are made of only one type of atom, while compounds contain different types of atoms joined together. Atoms are the smallest particle that can participate in chemical reactions.
Elements and Compounds.pptx
This document discusses elements and their properties. It defines an element as a pure substance made of atoms that cannot be broken down further by physical or chemical means. Elements are the building blocks of matter and can be classified as metals, nonmetals or metalloids. The document lists physical properties of elements like luster, volume, color, mass and shape, which can be observed through human senses. It also lists chemical properties of elements like flammability, oxidation, toxicity and acidity, which involve changes in an element's composition.
Language of Chemistry.ppt
The document discusses naming and classification of ions according to IUPAC rules. It defines ions as atoms or groups of atoms with a charge. Cations are positively charged and named by the element followed by "ion". Anions are negatively charged and named by dropping the end of the element name and adding "-ide". Metals that form multiple ions are named with the charge state in Roman numerals. The document also discusses monoatomic and polyatomic ions and common metal ion charges.
Atomicnotes 7 And 8
The document discusses atomic structure and the periodic table. It explains that atoms are the basic unit of matter and are made up of protons, neutrons, and electrons. The number of protons determines the element. The periodic table organizes the elements and provides information about atomic structure like atomic number and mass. It also describes the historical models of the atom including those proposed by Dalton, Thomson, Rutherford, and Bohr.
Similar to Physical Science 3.1 : Elements (20)
Interactive textbook ch. 4 elements, compounds & mixtures
Interactive textbook ch. 4 elements, compounds & mixtures
Interactive textbook ch. 4 elements, compounds & mixtures
Interactive textbook ch. 4 elements, compounds & mixtures
MATTER ,BIOLOGY AND OTHER TOPICS FOR GRADE 6,7 ICSE SCIENCE
MATTER ,BIOLOGY AND OTHER TOPICS FOR GRADE 6,7 ICSE SCIENCE
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Physical Science 3.1 : Elements
- 1. Elements Physical Science Chapter 3.1
- 2. Objectives Describe pure substances. Describethe characteristics of elements, and give examples. Explainhow elements can be identified. Classify elements according to their properties. Bellringer What do gold, iron, and aluminum have in common? What do oxygen, neon, and sulfur have in common? How is silicon different from aluminum or oxygen?
- 3. Elements Elements pure substances that cannot be separated into simpler substances by physical or chemical means Are a Pure substance A substance in which there is only one type of particle Are made of particles called atoms.
- 4. Properties of Elements Each element can be identified by its unique set of properties. may share a property with another element, but other properties can help you tell the elements apart. Helium Unreactive gas Less dense than air Krypton Unreactive gas More dense than air
- 5. Identifying Elements by Their Properties Elements can be identified by using their physicaland chemicalproperties Nickel M.P : 1455 OC Density : 8.9 g/cm3 Conducts heat & Electricity Unreactive with oxygen in air Cobalt M.P : 1495 OC Density : 8.9 g/cm3 Conducts heat & Electricity Unreactive with oxygen in air Iron M.P : 1535 OC Density : 7.9 g/cm3 Conducts heat & Electricity Reacts slowly with oxygen in air
- 6. Classifying Elements by Their Properties Three major categories: Metals shiny, malleable, ductile, and they conduct heat energy and electric current Nonmetals dull, brittle, and conduct heat and electricity poorly Metalloids have properties of both metals and nonmetals Gold Sulfur Silicon