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22 Cards in this Set
- Front
- Back
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Kayla |
Hackler |
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Actinides |
An element in the second row of the rare earth elements in the periodic table. |
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Alkali Metal |
An element in group one 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 of 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 or an atom |
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Element |
A substance that cannot be broken down into other substances by chemical and 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 in group 17 of the periodic table |
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Lathanides |
An element in the first row in the periodic table |
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Matter |
Anything that has size and mass |
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Metal |
An element that conducts heat and electricity, is shiny, and can be hammered into sheets or drawn into wires |
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Matalloid |
An element that has some properties of both metals and nonmetals |
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Neutron |
A partial with no charge, found in the neculous of an atom |
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Nobel Gases |
An element of group 18 in the periodic table |
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Nonmetal |
An element that that does not conduct heat or electricity well and is dull and brittle or gaseous |
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Nucleus |
The center of an atom containing protons and neutrons; a large structure in a cell that controls many of its functions and contains genetic material |
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Period |
A horizontal row in the periodic table; a block of time on the geologic time scale during which unique rock layers were laid down |
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Periodic Table |
A chart that organizes information about all known elements according to their properties |
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Proton |
A positively charged partial found in a nucleus of an atom |
