Elektroni on alkeishiukkanen

<sub>Gravitaatio Positroni lepton

Leukipa −1,6022·10−19

e−

9.10938215(45)×10−31 kg
5.4857990943(23)×10−4 u
[1,822.88850204(77)]−1 u
0.510998910(13) MeV/c2

−1 e
−1.602176487(40)×10−19 C
−4.803×10−10 esu  

Richard Laming (1838.–1851.), G. Johnstone Stoney (1874.)

 1/1836 that of the proton

c = 1/√ε0μ0</sub>