bn:00042691n
Noun Concept
Categories: Halogens, Articles with short description, Groups in the periodic table
EN
halogen  group 17  Halogen group  Biological roles of halogens  dihalo
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EN
The halogens are a group in the periodic table consisting of six chemically related elements: fluorine, chlorine, bromine, iodine, astatine, and tennessine, though some authors would exclude tennessine as its chemistry is unknown and is theoretically expected to be more like that of gallium. Wikipedia
Any of the elements of the halogen family, consisting of fluorine, chlorine, bromine, iodine, and astatine. OmegaWiki
Any element of group 17, i.e. fluorine, chlorine, bromine, iodine and astatine, which form a salt by direct union with a metal. Wiktionary
Any element of group 17. Wiktionary (translation)