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14 Cards in this Set
- Front
- Back
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Periodic Table
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An arrangement of elements in columns based on a set of properties that repeat from row to row.
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Period
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A row in the periodic table of elements.It goes left to right, like reading or writing a sentence.
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Group
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A column of elements in a periodic table. A group can also be called a family and groups run up and down (Vertically)
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Periodic Law
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The pattern of repeating properties displayed by elements in the periodic table.
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Atomic Mass Unit (AMU)
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One twelfth the mass of a Carbon-12 atom.
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Metals
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Elements that are good conductors of heat and electrical currents.
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Transition Metals
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Elements that form a bridge between elements on the left and right sides of the periodic table.
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Nonmetals
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Elements that are poor conductors of heat and electrical currents.
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Metalloids
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Elements with properties that fall between those of metals and nonmetals
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Valence Electron
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An electron that is in the highest occupied energy level of an atom.
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Alkali Metals
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The elements in group 1A of the periodic table, not including Hydrogen
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Alkaline-Earth Metals
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The elements in group 2A of the periodic table.
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Halogens
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The elements in group 7A of the periodic table.
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Noble Gases
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The elements in group 8A of the periodic table.
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