Question

Sodium chloride is a compound of sodium and chlorine, which of these elements is the alkali metal and which halogen?

Answer 1

sodium is alkali metal and chlorine is halogen atom

Answer 2

Sodium is alkali metal becuse it is slightly basic that’s why it is called alkali metal
Chlorine is halogen
It is called halogen because their salts are present in the sea ( Halogen- Sea salt former )