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23 Cards in this Set
- Front
- Back
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Jackson |
Parrish |
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Actinides |
An element in the second row of the 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 basic building block of the matter around us; the smallest particle of an element that has all the properties of that element |
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Atomic Mass |
A measure of an atom's mass that is equal to the number of protons and neutrons in the atom's nucleus |
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Atomic Number |
The number of protons in the nucleus of the atom
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Compound |
A pure substance that forms when two or more elements join chemically in a fixed proportion |
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Electron |
A negatively charged subatomic particle that is located outside the nucleus of an atom |
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Element |
One of the basic substances that combine to form all other substances; a substance that cannot be broken down into simpler substances by ordinary chemical means |
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Group |
A vertical column in the periodic table; also called chemical family |
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Halogens Family |
The elements in group 17 of the periodic table |
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Lathanides |
An element in the first row of the rare Earth elements in the periodic table |
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Matter |
Anything that has mass or 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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Neutron |
A particle with no charge, found in the nucleus of an atom |
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Nobles Gasses |
An element in group 18 of the periodic table |
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Nonmetal |
An element 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; contains protons and neutrons; a large structure in a cell that controls many of its functions and contains its genetic material |
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Period |
A horizontal row in the periodic table; a block of time on the geologic scale during which unique rock layers were laid down |
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Periodic Table |
A chart that organizes information about all the known elements according to their properties |
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Proton |
A positively charged particle found in the nucleus of an atom |
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Transition Metal |
An element in group 3 through 12 of the periodic table |
