25.4: Properties of Stable Particles
( \newcommand{\kernel}{\mathrm{null}\,}\)
Symbol Value Meaning e1.60×10−19C fundamental unit of charge me9.11×10−31 kg=0.511MeV mass of electron mp1.672648×10−27 kg=938.280MeV mass of proton mn1.674954×10−27 kg=939.573MeV mass of neutron