HALOGENS
Definition
HALOGENS is the plural of HALOGEN.
noun HALOGEN: any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions.
HALOGENS is the plural of HALOGEN.
noun HALOGEN: any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions.