Question

1. the dependence of binding energy per nucleon, bn, on the mass number a is represented by

Answer 1

The graph showing that greater the binding energy per nucleon, the more stable the nucleus is. The graph has its maximum of 8.8 MeV/N when the number of nucleons is 56. The nucleus that has 56 protons and neutron is 5626 Fe, an iron isotope. This is the most stable nucleus of them all, since maximum energy is needed to pull a nucleon away, from it.