1
Atomic Number
The amount of protons in an atom
2
Atomic Mass
The weight of the protons and neutrons in the nucleus of an atom
3
Proton
A positively charged particle
4
Neutron
A particle with no charge
5
Electron
A negatively charged particle
Atomic Number
The amount of protons in an atom
Atomic Mass
The weight of the protons and neutrons in the nucleus of an atom
Proton
A positively charged particle
Neutron
A particle with no charge
Electron
A negatively charged particle