Term
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Definition
| An arrangement of elements in columns based on a set of properties that repeat from row to row |
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Definition
| A pattern of repeating properties that occurs when atomic numbers are used to arrange elements into groups |
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Term
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Definition
| One twelfth the mass of a carbon-12 atom |
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Term
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Definition
| Elements that are good conductors of heat and electric current |
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Term
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Definition
| Elements that form a bridge between the elements on the left and right sides of the periodic table |
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Term
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Definition
| Elements that are poor conductors of heat and electric current |
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Term
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Definition
| Elements with properties that fall between those of metals and nonmetals |
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Term
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Definition
| An electron that is in the highest occupied energy level of an atom |
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Term
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Definition
| Colorless, odorless, and extremely unreactive gases |
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