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The halogen family of elements make up group VIIA of the Periodic Table. They are the nonmetallic chemical elements fluorine, chlorine, bromine, iodine, and astatine. The name halogen means salt, and all of these elements, each having a valence of -1, will readily react with sodium to form the halides sodium fluoride, sodium chloride (common table salt), sodium bromide, sodium iodide, and sodium astatide.

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16y ago

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