Here's why:

* Halogens are a group of non-metallic elements found in Group 17 of the periodic table.

* Chlorine (Cl) is one of these elements, along with fluorine (F), bromine (Br), iodine (I), and astatine (At).

* Key characteristics of halogens:

* They are highly reactive, readily forming salts with metals.

* They exist as diatomic molecules in their elemental state (e.g., Cl₂).

* They have a variety of uses, including disinfectants, pesticides, and in the production of plastics.