Here's a breakdown:

* Nonmetal: Chlorine is a nonmetal element. It lacks the properties of metals, such as conductivity and malleability.

* Halogen: Chlorine belongs to Group 17 (VIIa) of the periodic table, known as the halogens. This group includes elements like fluorine, bromine, and iodine, all of which are highly reactive nonmetals.

Chlorine exists as a diatomic molecule (Cl2) in its elemental form, meaning two chlorine atoms bond together to form a molecule. This form is a yellow-green gas at room temperature.