Nonmetals Quiz

Seventeen elements are generally considered nonmetals.

Nonmetals tend to have low density, high electronegativity, and are often poor conductors of heat and electricity.

Oxides of metals tend to be basic, while those of nonmetals tend to be acidic.

<p>Hydrogen and helium together make up about 98% of the observable ordinary matter in the universe by mass.</p> Signup and view all the answers

<p>Nonmetals range from colorless gases like hydrogen to shiny solids like the graphite form of carbon.</p> Signup and view all the answers

<p>Nonmetals tend to have low density and high electronegativity.</p> Signup and view all the answers

<p>Nonmetals are often poor conductors of heat and electricity, and when solid tend to be brittle or crumbly.</p> Signup and view all the answers

<p>Oxides of nonmetals tend to be acidic, while oxides of metals tend to be basic.</p> Signup and view all the answers

<p>Hydrogen and helium together make up about 98% of the observable ordinary matter in the universe by mass.</p> Signup and view all the answers

<p>Seventeen elements are generally considered nonmetals, though some authors recognize more or fewer depending on the properties considered most representative of metallic or nonmetallic character. Some borderline elements further complicate the situation.</p> Signup and view all the answers