What are the 3 subatomic particles in an atom?
Protons , Neutrons , Electrons
What are protons and neutrons also known as?
Nucleons
What is the relative mass of a proton , neutron and electron?
Proton=1
Neutron=1
Electron=0.0005 or 5x10^-4
What are ions?
Atoms that have lost or gained electrons and therefore now have either a positive or negative charge.
What are negative ions called?
Anions
What are positive ions called?
Cations