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Elem/Comp/M-NM-M
6.5A, 6.6A Elements, Compounds, Metals, Nonmetals, & Metalloids
Term | Definition |
---|---|
Atom | Smallest particle of an element, made of electrons, protons, & neutrons. |
Compound | Substance made of 2 or more elements that are chemically combined in fixed amounts. |
Substance | Any form of matter that is uniform throughout & has consistent properties. |
Properties | Physical & chemical characteristics of matter used to describe or identify a substance. |
Volume | Measure of the space that matter occupies. |
Mass | Measure of how much matter is present in a substance. |
Mixture | Combination of 2 or more substances which do not chemically combine. |
Uniform Composition | Made of the same evenly distributed substance or combination of substances throughout; uni = one |
Periodic Table of Elements | Table in which all the known elements are arranged by properties; represented by 1 or 2 letters, known as chemical symbols. |
Physical Property | Measurable characteristics that describe the physical state of something, including mass, magnetism, temperature, density, shape, volume, & conductivity. |
Metals | Most elements are metals; they're typically solid, shiny, malleable, & good conductors of heat & electricity. |
Non-Metals | Elements that are typically not shiny, not malleable, & poor conductors of heat & electricity; usually gases or brittle solids. |
Metalloids | Elements that have properties of both metals & nonmetals; sometimes referred to as semiconductors. |
Luster | The way the surface of a mineral reflects light; either metallic or non-metallic such as silky, dull, glassy, or resinous. |
Conductivity | The ability of a substance to transfer heat or electrical energy. |
Malleability | The ability of something to be reshaped without breaking. |
Brittle | A tendency to break rather than flex or bend. |
Insulator | A material that does NOT conduct heat or electrical current. |
Conductor | A substance that readily transfers heat or electrical energy. |
Semiconductor | A substance that shows the property of electrical conductivity between that of a conductor & that of an insulator; foundation of modern electronics. |
Matter | Anything that has mass & takes up space. |
Classify | Sort or put into groups based on similar & dissimilar physical, chemical, or biological characteristics. |
Element | A pure substance composed of the same type of atom throughout. |