halogen

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English[edit]

Etymology[edit]

From Ancient Greek ἅλς (háls, salt) + -gen (produce), referring to elements which produce a salt in union with a metal.

Pronunciation[edit]

Noun[edit]

halogen (plural halogens)

  1. (chemistry) Any element of group 7, i.e. fluorine, chlorine, bromine, iodine and astatine, which form a salt by direct union with a metal.

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