Question: what is the difference between electron and lepton?
Answer: Leptons have negative charge and a distinct mass, whereas their neutrinos have a neutral charge. Electrons are the lightest, with a mass of 0.000511 gigaelectronvolts (GeV), while Muons have a mass of 0.1066 Gev and Tau particles (the heaviest) have a mass of 1.777 Gev.