Consider the (eight) n = 2 states, |2m m s ). Find the energy of each

Consider the (eight) n = 2 states, |2ℓm_ℓm_s). Find the energy of each state, under strong-field Zeeman splitting. Express each answer as the sum of three terms: the Bohr energy, the fine structure (proportional to a²), and the Zeeman contribution (proportional to μ_B B_ext). If you ignore fine structure altogether, how many distinct levels are there, and what are their degeneracies?