How many nonmetals are there in the periodic table?

A nonmetal is a chemical compound that lacks metallic properties.

Physically: nonmetals tend to be easily vaporized, have low elasticity, and are good insulators of heat and electricity.

Chemically: they tend to have high ionization energy and values. They gain or share electrons when they react with other or .

Here you can see where metals, nonmetals, and are in :