Is there a formula for determining the total spin of a nucleus? I know protons and neutrons have 1/2 spin and I know even number A nuclei have 0 spin. But I don’t know how the spin is determined for values larger than 1/2. For example: 55Fe spin 3/2 56Co spin 4 57Co spin 7/2 60Co spin 5 I didn’t find anything in the PF library. Other book reference in Inter-Library queue. Any online reference would be helpful.