Front

Protons are:

Back

Positive

Front

Neutrons are:

Back

Neutral

Front

Electrons are:

Back

Negative

Front

Positively charged particle in an atom's nucleus

Back

Proton

Front

Center of an atom:

Back

nucleus.

Front

Subatomic particle with no charge in an atom's nucleus:

Back

neutron

Front

Most of an atom's mass is in the ______.

Back

nucleus

Front

Smallest particle of an element

Back

Atom

Front

Particles orbiting the nucleus of an atom.

Back

electrons

Front

Location of electrons in an atom.

Back

Electron Cloud