Question

which is the most reactive family of nonmetals?
halogens
alkali metals
alkaline earth metals
noble gases

Explanation:

Halogens are non - metals and are highly reactive due to their electron - configuration. They need only one electron to achieve a stable noble - gas configuration. Alkali metals are metals, not non - metals. Alkaline Earth Metals are also metals. Noble Gases are very stable and unreactive.

Answer:

Halogens