Fermion

Mass mi (MeV/c2)

Wavelength li (F)

Charge

Electron

0.511

386

e

Up quark

2.16

91.4

2e/3

Down quark

4.67

42.3

e/3

Strange quark

93

2.12

e/3

Muon

105.7

1.87

e

Charm quark

1270

0.155

2e/3

Tau lepton

1777

0.111

e

Bottom quark

4180

0.0472

e/3

Top quark

173,000

0.00114

2e/3