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13 Cards in this Set
- Front
- Back
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group
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collection of elements that have similar physical or chemical properties
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metal
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an element that has luster is a good conductor of heat and electricty, is malleable and ductile
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metalloid
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an element that shares some properties wioth metals and some with nonmetals
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nonmetals
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elements that are gases or brittle solids at room temperature and do not conduct heat and electricty well
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preiod
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a row of elements whose properties change graudally
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representative elements
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the elements in groups 1 and 2 and the elements in groups 13-18
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transition metals
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the elements in group 3-12
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alkali metals
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silvery solids with low densitied and low melting points
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alkaline earth metals
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metals that are denser and harder and have a higher melting point than the alkali metals in the same period
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halogens
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elements in groups 17 that make salts
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noble gases
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elements that do not often combine with other elements
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semiconductors
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a material that does notconduct electricty as well as a metal, but does conduct electricty better than a nonmetal
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actinides
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the name of the second serIes of transition elements
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