Quarks and leptons both fall under the category of fermions. Finally, we have bosons. There are gauge bosons (photon, W and Z bosons, gluons), which act as mediators of the fundamental forces ...

Leptons are particles that can exist on their own. Protons and neutrons belong to the ‘family’ of hadrons. The hadrons are the heavier particles. All hadrons are made of quarks (which can only ...

These four fundamental forces exist between fermions (quarks and leptons). They arise from the exchange of bosons. Bosons are the 'force carrying' or 'force-mediating' particles. If a fermion ...