Parts of an Atom

Front

What is a neutron?

Back

A subatomic particle that has no charge.

Front

What is matter?

Back

Anything that has mass and takes up space.

Front

What is an atom?

Back

Smallest piece of matter.

Front

Which subatomic particle is the smallest?

Back

Electrons.

Front

What is the center of an atom called?

Back

Nucleus.

Front

What are protons?

Back

Subatomic particles that are positively charged.

Front

What is the charge of an electron?

Back

Negatively charged.

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom.

Front

What is the mass number?

Back

The total number of protons and neutrons in an atom's nucleus.

Front

What is an isotope?

Back

Atoms of the same element that have different numbers of neutrons.