Ohh ok, so as the number of nucleons (A) gets bigger, the fraction of nucleons on the surface would be smaller compared to the total number of nucleons. Once A becomes really bug the effect of the ones on the surface having fewer neighbors becomes so small that it's negligible because there are...
Sorry, the equations are messy. I already know the answer to the actual homework problem, but I don't really know why certain terms are neglected.
I know that the equation will only include the volume term, symmetry term and the extra added gravity term. I just want to understand why
I know...