The proton is one of more important subatomic particles. The protons are combined with electrons and neutrons to form atoms. The protons have positive electrical charge
The electrons are one of the most important types of subatomic particles. The electrons are combined with protons and neutrons to create atoms. The electrons have negative electrical charge.
A neutron is a sub-atomic particle. The nucleus of an atom is made up of neutrons and protons. Neutrons and protons are almost exactly the same size. A neutron doesn’t have an electrical charge.
Quarks, together with the leptons, are the fundamental components of the matter and the smallest particles than the man have managed to identify. Many species of quarks are combined to form particles like protons and neutrons.