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A '''lepton''' is a [[fermion]], meaning that it is an elementary particle with half-integer spin. Leptons consist of several types of electrons, such as the tau electron; along with [[quark]]s, leptons are matter constituents.

A '''lepton''' is a [[fermion]], meaning that it is an elementary particle with half-integer spin. Leptons consist of several types of electron-like particles and [[neutrino|neutrinos]]. There are three known electron-like particles; the [[electron]], [[muon]] and the tau. The neutrinos include the electron-neutrino, the muon-neutrino and the tau-neutrino. Along with [[quark]]s, leptons form the [[fundamental particles]] of [[matter]].

[[Category:Quantum Mechanics]]

[[Category:Quantum Mechanics]]