Question

Are sodium and potassium metals, nonmetals, or metalloids?

Answer 1

Metals:

• A metal is a class of substance that has high electrical/thermal conductivity.
• Elements with metallic character are placed in alkali metals, alkaline earth metals as well as transition metals.
• Metallic character is associated with the elements that are metals.
• Most of the metals are hard, have high melting/boiling points, and are malleable as well as ductile.

Sodium$\left(\mathrm{Na}\right)$ and Potassium$\left(\mathrm{K}\right)$ are alkali metals that belong to Group-$1$.