An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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electron radius
  شعاع ِ الکترون  
šo'â'-e elektron
Fr.: rayon de l'électron  

The classical size of the electron given by re = e2/mec2 = 2.81794 × 10-13 cm, where e and me are the → electron charge and → electron mass, respectively, and c is the → speed of light.

See also: → electron; → radius.