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19 Cards in this Set
- Front
- Back
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Jonathan |
Gmelin |
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Actinides |
An element in the seconds row of the rare earth elements in the periodic table |
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Alkali Metal |
An element in group 1 of the periodic table |
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Atom |
The smallest particle of an element |
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Atomic Mass |
The average mass of one atom in an element |
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Atomic number |
The number of protons in the nucleus of an atom |
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Compound |
A substance made of two or more elements chemically combined |
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Electron |
A tiny negatively charged particle that moves around the nucleus of an atom. |
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Element |
A substance that cannot be broken down into other substances by chemical or physical means. |
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Group |
Elements in the same vertical column of the periodic table; also called family. |
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Halogens Family |
The elements in group 7 of the periodic table. |
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Lathanides |
An element in the first row of the rare earth elements on the periodic table |
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Matter |
Mass that takes up space. |
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Metal |
An element that conducts heat and electricity well, is shiny, and can be hammered into sheets or drawn into wires. |
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Metalloid |
An element that has some properties of both metals and nonmetals |
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Nobel gases |
An element of group 18 in the periodic table. |
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Nonmetal |
An element that does not conduct heat or electricity. |
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Period |
A horizontal row of elements in the periodic table. |
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Transition Metal |
An element in groups 3-12 in the periodic table |
