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Jun20-06, 06:04 PM
Sci Advisor
PF Gold
Garth's Avatar
P: 3,273
Well, classically it all depends on what radius you attribute to the electron, if it is not to be treated as a point charge.

Throwing in some numbers to get an OOM feel for the question we find:

Classical radius of electron = 2.8 x 10-13 cm
Reduced mass of electron in H atom = 9.1 x 10-27 gm
G = 6.7 x 10-8 dyn cm2gm-2
c2 ~ 1021 cm2 sec-2

[tex]\frac{2GM}{rc^2}[/tex] = 4.8 x 10-43,

pretty short of the value "1" required for an event horizon...