Chemistry Fundamentals Quiz

An element is a combination of atoms and molecules.

An element is a pure substance made up of only one type of atom. (correct)

An element is a compound composed of two or more elements.

An element is a mixture of different substances.

A compound is a substance made up of two or more elements chemically combined, while a mixture is a combination of substances that are not chemically combined. (correct)

A compound is a mixture of different substances, while a mixture is a pure substance.

A compound is a pure substance made up of only one type of atom, while a mixture is a combination of atoms and molecules.

A compound is a substance that cannot be broken down into simpler substances, while a mixture can be separated into its components.

The number of protons in the nucleus of an atom of that element. (correct)

The average mass of all the isotopes of that element.

The number of electrons in the outermost energy level of an atom of that element.

The total number of protons and neutrons in the nucleus of an atom of that element.

<p>Change in physical properties</p> Signup and view all the answers

<p>Mixing salt and water</p> Signup and view all the answers

<p>Energy</p> Signup and view all the answers