Calculate the binding energy for the following two uranium isotopes (where u = 1.6610-27 kg): (a) 23892U,

Question:

Calculate the binding energy for the following two uranium isotopes (where u = 1.66∙10-27 kg):
(a) 23892U, which consists of 92 protons, 92 electrons, and 146 neutrons, with a total mass of 238.0507826 u
(b) 23592U, which consists of 92 protons, 92 electrons, and 143 neutrons, with a total mass of 235.0439299 u
Which isotope is more stable (or less unstable)?