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| any of the elements found in Group IA of the periodic table. Alkali metals are very reactive chemical species which readily lose their one valence electron to form ionic compounds with nonmetals. |
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| an element belonging to group 2 of the periodic table. The alkaline earth metals, as a group, share characteristic properties. |
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| A element located in Group VIIA of the periodic table. Halogens are reactive nonmetals having seven valence electrons. |
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| an element with atomic number greater uranium's atomic number of 92. |
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| Any of the elements found in Group 8 at the far right of the Periodic Table. |
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| Rows of elements on the periodic table. |
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| A substance with high electrical conductivity, luster, and malleability, which readily loses electrons to form positive ions (cations). |
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| A gentle sheen with reflective capability. |
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| A physical property of a material associated with their ability to be hammered thin or stretched into wire without breaking. |
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| an element with properties intermediate between those of a metal and nonmetal. |
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| One of the elements which do not exhibit metallic properties, generally located in the upper righthand corner of the Periodic Table. |
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| Columns of elements on the periodic table which have the same outer electron arrangement. |
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