1. The neutron separation energy, Sn, is the amount of energy that is needed to remove a neutron from a nucleus ^X. In a similar way, we can define the proton separation energy, Sp, as the energy needed to remove a proton. The neutron and proton separation energies are analogous to the ionisation energies in atomic physics they tell us about the binding of the outermost or valence nucleons. Making use of the relevant atomic masses, calculate (a) the neutron separation energy of 11 Zr, and (b) the proton separation energy of - 40 197 79 Au.

1. The neutron separation energy, Sn, is the amount of energy that is needed to remove a neutron from a nucleus ^X. In a similar way, we can define the proton separation energy, Sp, as the energy needed to remove a proton. The neutron and proton separation energies are analogous to the ionisation energies in atomic physics they tell us about the binding of the outermost or valence nucleons. Making use of the relevant atomic masses, calculate (a) the neutron separation energy of 11 Zr, and (b) the proton separation energy of - 40 197 79 Au.