halogen

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[edit] English

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[edit] Etymology

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

[edit] Pronunciation

  • enPR: hăləjĕn
  • IPA: /ˈhæləʤɛn/

[edit] Noun

Singular
halogen

Plural
halogens

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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