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10 Cards in this Set
- Front
- Back
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period
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horizontal row of elements in the periodic table whose properties change gradually and predictably.
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element
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a substance that cannot be broken down into simpler substances
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group
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family of elements in the periodic table that have similar physical or chemical properties.
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representative element
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elements in groups 1 and 2 and 13-18 in the periodic table that include metals, metalloids, and nonmetals.
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transition element
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elements in groups 3–12 in the periodic table, all of which are metals
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metal
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element that has luster, is malleable, ductile, and a good conductor of heat and electricity.
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nonmetal
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element that is usually a gas or brittle solid at room temperature and is a poor conductor of heat and electricity.
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metalloid
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element that shares some properties with both metals and nonmetals.
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Mendeleev
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demitri mendeleev russian chemist first to document periodic table.
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Periodic Table
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chart of all elements.
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