Since we know that proton charge can be screened and therefore variable, the coulomb coefficient is reduced relative to the Asymmetry term as a result of screening. See
http://en.wikipedia.org/wiki/Semi-empirical_mass_formula On Wed, Mar 27, 2013 at 5:03 PM, <[email protected]> wrote: > In reply to Axil Axil's message of Mon, 25 Mar 2013 10:23:03 -0400: > Hi, > [snip] > >As this positive charge is reduced, the attraction between protons and > >neutrons are decreased. > > Why? > Regards, > > Robin van Spaandonk > > http://rvanspaa.freehostia.com/project.html > >

