Atom Basics

Front

The positive particles of an atom are...

Back

Protons.

Front

If the number of protons equals the number of _____, the atom will have no charge.

Back

Electrons.

Front

What is the atomic mass number?

Back

The total number of protons and neutrons in an atom.

Front

Particles in an atom that are neutral and have no charge are...

Back

Neutrons.

Front

What is the atomic number?

Back

The number of protons in an atom.

Front

What are electrons?

Back

Negatively charged particles that orbit the nucleus of an atom.

Front

What is the nucleus of an atom?

Back

The central part of an atom, containing protons and neutrons.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of an electron?

Back

Negative.

Front

What is the charge of a neutron?

Back

Neutral.