halogen /hal·o·gen/ (hal´o-jen) any of the nonmetallic elements of the seventh group of the periodic system: chlorine, iodine, bromine, fluorine, and astatine.
halogen
halogen (hal´ōjen),
hal·o·gen (h l  -jn)n. Any of a group of five chemically related nonmetallic elements including fluorine, chlorine, bromine, iodine, and astatine. |
halogen
[hal′ōjən]
Etymology: Gk, hals, salt, genein, to produce
any member of group 17 (or Group VIIA) in the periodic table: fluorine, chlorine, bromine, iodine, and astatine. With the exception of astatine, they are found in seawater as the corresponding halide ion.
halogen (hal´ōjen),
n an element of a closely related group of elements consisting of fluorine, chlorine, bromine, and iodine.
halogen
an element of group VII of the periodic table, the members of which form similar (saltlike) compounds in combination with sodium. The halogens are bromine, chlorine, fluorine, iodine and astatine.
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