The electron is 1836 times lighter than the proton and orbits at a distance tens of thousands of times larger than the proton radius. Standard physics measures these ratios; it does not derive them.
This paper derives the electron mass from pure geometry as the interstitial remainder of proton condensation, giving the mass ratio 1 to 6 pi to the fifth power, and shows that the Bohr radius follows from the same substrate density that fixes the proton scale.