Chemistry of Matter Chemical reactions, acids and bases see chemistry page . Energy 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.