halogen
halogen, halogeni element
any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions [kateri od petih povezanih nekovinskih elementov (fluor, klor, brom, jod ali astatin), ki so vsi enovalentni in se hitro oblikujejo negativni ioni]
Dostopnost
Dostopnost