Front

The subatomic particles that make up an atom.

Back

Electrons, protons, neutrons.

Front

An electron has a _________ charge.

Back

Negative.

Front

__________ are negatively charged particles that are in the orbitals around the nucleus.

Back

Electrons.

Front

What is at the center of every atom?

Back

A nucleus.

Front

Which is an electron?

Back

A.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of a neutron?

Back

Neutral.

Front

What is the nucleus composed of?

Back

Protons and neutrons.

Front

What determines the atomic number of an element?

Back

The number of protons in the nucleus.

Front

What is the mass of an electron compared to a proton?

Back

Much smaller.