The Nilsson model of these objects explains the observation from rotational spectra (15[1])that the majority of them are prolate. Wigner used random matrices to describe the distribution of energy-level (15[1])spacings in the spectra (-5[1])of these objects. They're not molecules, but "isomers" of these objects are often metastable (15[2])because relaxation is extremely spin-forbidden, (15[2])and are labeled with an (15[1])"m." Interactions with the spin (15[1])of (15[1])these objects, symbolized I, leads to (*) hyperfine (10[1])structure. (-5[1])The semi-empirical (-5[1])mass formula predicts a peak (10[2])around (10[1])A equals 56 for the binding energy of these (10[1])objects. (10[6]-5[2])The existence of these structures was suggested by their scattering (10[1])of alpha particles (10[3])in (10[1])Rutherford’s (10[1]-5[1])gold (10[2])foil (10[3])experiment. (10[5]-5[2])For 10 (-5[1])points, name these structures consisting of (10[1])protons and neutrons that (-5[1])lie (10[2])at the center of atoms. ■END■ (10[8]0[1])