  We consider the semiclassical rigid-body quantization of Skyrmion solutions
of mass numbers B = 4, 6, 8, 10 and 12. We determine the allowed quantum states
for each Skyrmion, and find that they often match the observed states of
nuclei. The spin and isospin inertia tensors of these Skyrmions are accurately
calculated for the first time, and are used to determine the excitation
energies of the quantum states. We calculate the energy level splittings, using
a suitably chosen parameter set for each mass number. We find good qualitative
and encouraging quantitative agreement with experiment. In particular, the
rotational bands of beryllium-8 and carbon-12, along with isospin 1 triplets
and isospin 2 quintets, are especially well reproduced. We also predict the
existence of states that have not yet been observed, and make predictions for
the unknown quantum numbers of some observed states.
