As nouns the difference between halogen and alkyl
is that halogen
is halogen (any element of group 7) while alkyl
Other Comparisons: What's the difference?
(chemistry) Any element of group 7, i.e. fluorine, chlorine, bromine, iodine and astatine, which form a salt by direct union with a metal.
(organic chemistry) Any of a series of univalent radicals of the general formula CnH2n+1 derived from aliphatic hydrocarbons.
* amyl, pentyl
* and so on