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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 :