Parts of an Atom

Front

What holds atoms together?

Back

Protons and electrons are attracted to each other, holding atoms together.

Front

What is a proton?

Back

A proton is a subatomic particle that is positively charged.

Front

What is the center of an atom called?

Back

The center of an atom is called the nucleus.

Front

What is a neutron?

Back

A neutron is a subatomic particle that has no charge.

Front

What is an atom?

Back

An atom is the smallest piece of matter.

Front

What are the three main subatomic particles?

Back

The three main subatomic particles are protons, neutrons, and electrons.

Front

Where are protons located in an atom?

Back

Protons are located in the nucleus of an atom.

Front

Where are electrons located in an atom?

Back

Electrons are located outside the nucleus in electron shells.

Front

What charge do electrons have?

Back

Electrons have a negative charge.

Front

What is the mass of a neutron compared to a proton?

Back

A neutron has approximately the same mass as a proton.