All known leptons have a negative or neutral charge. There are 6 types of lepton, 3 of which are negative, the other 3 neutral.
| Name | Charge | Mass(GeV) |
|---|---|---|
| Electron | -1 | 0.000511 |
| Electron Neutrino | 0 | ~0 |
| Muon | -1 | 0.1056 |
| Muon Neutrino | 0 | ~0 |
| Tau | -1 | 1.777 |
| Tau Neutrino | 0 | ~0 |
Authoritative information on particle properties is compiled by the Particle Data Group http://pdg.lbl.gov
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