In reply to Axil Axil's message of Wed, 27 Mar 2013 17:27:07 -0400: Hi, [snip] >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
The Coulomb term is negative. If you reduce it, the binding energy increases, making the nucleus more stable, not less. (The Coulomb term reduces the binding energy of the nucleus because of the mutual repulsion of the protons.) Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/project.html

