Front

The mass number of an isotope is equal to the number of ______ in an atom.

Back

Protons + Neutrons

Front

Which subatomic particle is neutral?

Back

Neutron

Front

The mass listed on the periodic table for each element is known as the ______.

Back

average atomic mass

Front

Which subatomic particle has a negative charge?

Back

Electron

Front

The mass of a proton is the same as the mass of a ______.

Back

neutron

Front

What are the three main subatomic particles?

Back

Protons, Neutrons, Electrons

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

Front

Where are protons located in an atom?

Back

In the nucleus