Eric--
What is the frame of reference that the electron is relativistic in? Does such a hypothesis consider that the rotation of the pertinent frame of reference is nill. What would be the effect of a spinning frame circulating in the same direction as the electron’s circulation? Would the relativistic appearance of the electron in question change? Would an external rotating magnetic (or electric) field change the relativistic appearance of the electron to the nucleus which it is influenced by? It may be that electrons around free nuclei act much differently than those around nuclei in a lattice from the standpoint of relative motion to the nuclei’s reference frame. As you can tell from my questions and comments I have a hard time understanding how an electron can become in effect heavier in an atom because of its circulation around a point with no evidence about the stability of the point itself. Bob Sent from Windows Mail From: Eric Walker Sent: Wednesday, August 13, 2014 7:32 PM To: [email protected] On Wed, Aug 13, 2014 at 11:02 AM, Jones Beene <[email protected]> wrote: However, this deep [f/H] orbital is only a few Fermi in distance from the nucleus. The electron is relativistic and heavy when it gets there. It's interesting to note that the nuclear radius is not all that special with regard to the orbits of electrons and muons. In the case of Pb, the 1s orbit of a muon is inside the nuclear radius. Eric

