Leptons - are subatomic particles having spin equal to and masses far less than quarks. Four Forces in the Universe according to strength. Strong force- transmitted by gluons which bind protons and neutrons together in the nucleus of an atom also called the nuclear force. Releasing its power will cause a nuclear explosion. Electromagnetic force- transmitted by photons which bind electrons in atoms which includes all chemical reactions.
Photons are units of electromagnetic radiation including radio waves, light, and X-rays.
Gravity- transmitted by gravitons. They will lose protons, neutrons, and electrons. Neutrons are unstable unless combined with a proton. There are several types of decay. Alpha particle decay 2.