Question

halogens belong to functional groups or substituent ?​

Answer 1

The presence of a halogen atom (F, Cl, Br, or I; X is used to represent any halogen atom) is one of the simplest functional groups. ... The name of the halogen as a substituent comes from the stem of the element's name plus the ending –o, so the substituent names are fluoro-, chloro-, bromo-, and iodo-.

Answer 2

Answer:

The presence of a halogen atom (F, Cl, Br, or I; X is used to represent any halogen atom) is one of the simplest functional groups. The name of the halogen as a substituent comes from the stem of the element's name plus the ending –o, so the substituent names are fluoro-, chloro-, bromo-, and iodo-.