What category of elements does chlorine belong to?

Chlorine is classified as a member of the halogen group on the periodic table. The halogens consist of elements that are highly reactive nonmetals, typically found in group 17 (or 7A). This group includes fluorine, chlorine, bromine, iodine, and astatine.

Chlorine, specifically, is known for its strong disinfecting properties and is commonly used in water treatment and sanitation processes. Its reactivity is a characteristic feature of halogens, as these elements readily form compounds with a wide variety of other elements.

In contrast, noble gases are inert and do not easily form compounds, metals have distinct properties such as conductivity and malleability, and alkaline earth metals are found in group 2 and exhibit different chemical reactivities than halogens. Understanding these distinctions highlights why chlorine is correctly placed in the halogen category.