Front

The nucleus of an atom contains_____

Back

protons and neutrons

Front

Atoms make up elements and molecules make up ________

Back

compounds

Front

An atom is ____

Back

The smallest part of an element

Front

The symbol for sodium is______

Back

Na

Front

Atoms bonded together are called_____

Back

molecules

Front

What are the three main subatomic particles of an atom?

Back

Protons, neutrons, and electrons

Front

What is the charge of a proton?

Back

Positive

Front

What is the charge of a neutron?

Back

Neutral

Front

What is the charge of an electron?

Back

Negative

Front

What is an element?

Back

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