Question

Which of the following is not a nonmetal: sulfur, oxygen, silicon, or nitrogen?

Answer 1

Answer:

Oxygen

Explanation:

Oxygen is a nonmetal element. We wouldn't be able to breathe air because of all the toxins, it's just like smoking.

Seventeen elements are generally classified as nonmetals: most are gases (hydrogen, helium, nitrogen, oxygen, fluorine, neon, chlorine, argon, krypton, xenon and radon); one is a liquid (bromine); and a few are solids (carbon, phosphorus, sulfur, selenium, and iodine).

Answer 2

Silicon is not a nonmetal.

As the term implies, nonmetals are elements that do not have the properties of metal which means that:

• they don't conduct electricity or heat well
• they are not dense
• they are quite brittle

Silicon is not a nonmetal as it is a semiconductor of electricity and heat and is partly dense.

This is because Silicon is what we call a metalloid which means that it is a bit like both metals and nonmetals but not completely like either.

In conclusion, Silicon is not a nonmetal but it is not a metal either. It is instead a metalloid.

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