Periodic Table Development

Group 1A = Alkali metals. Group 2A = Alkaline Earth metals. Group 7A = Halogens. Group 8A = Noble gases. Metals, Nonmetals, Semimetals. Metal Properties. Metallic Luster (shine) Good conductor of heat and electricity. Solids at Room temperature ( except Mercury) Malleable ( hammered into thin sheets without shattering) ................
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