Which property is NOT typical of halogens?

The property that is not typical of halogens is their characterization as highly conductive metals. Halogens, which include elements like fluorine, chlorine, bromine, and iodine, are nonmetals and are generally known for their poor electrical conductivity. This is a significant distinction because metals are typically good conductors of electricity due to the presence of free-moving electrons, a characteristic that halogens lack.

Halogens are usually found as diatomic molecules, which is reflected in their common forms (e.g., Cl2, Br2). They certainly have varying melting and boiling points, but they are not high in comparison to metals; thus, their first property of high melting and boiling points is generally not representative. The structure and characteristics of halogens mean they do not share the metallic properties that would classify them as conductive metals.