Molecules and Compounds

Front

What is a compound?

Back

A substance made up of atoms of more than one element, chemically combined.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a molecule?

Back

A group of two or more atoms bonded together, which can be of the same or different elements.

Front

What is the charge of an electron?

Back

Negative (-) charge.

Front

What is the charge of a proton?

Back

Positive (+) charge.

Front

What is the charge of a neutron?

Back

Neutral (0) charge.

Front

What is carbon dioxide?

Back

A compound formed when one carbon atom combines with two oxygen atoms.

Front

How many atoms are in an oxygen molecule?

Back

Two oxygen atoms.

Front

What is the difference between a mixture and a compound?

Back

A mixture is a combination of substances that are not chemically bonded, while a compound is a substance formed from two or more elements that are chemically bonded.

Front

What is the smallest unit of an element?

Back

An atom.