Name a metal which is soft and a non metal which is hard

Explanation:  

• Metals have the properties of being malleable, ductile, and sonorous.
• Nonmetals, on the other hand, have limited tensile strength and cannot support a lot of weight.
• In general, metals are hard and nonmetals are soft, although there are several exceptions.
• Mercury, for example, is a soft metal, but Diamond is a hard nonmetal.

Final answer:

Hence, a soft metal is mercury and a hard non-metal is diamond .