1. The problem statement, all variables and given/known data Hi, my question is regardng a Coulomb model of an H atom specified with Hamiltonian operator, Hhat, by spherical coordinates of energy eigenfunction ψ2,1,-1 (r,θ, ∅) =(1/ 64∏a02)1/2 r/a0 e-r/2a0 sinθ e-iθ Principal quantum numer n = 2 orbital an mom l = 1 magnetic quantum number m = -1 I must specify magnitude of orbital ang momentum, Lhat2, and z-component of orbital ang momentum as well as total energy. 2. Relevant equations so; Lhat2 = l (l + 1) hbar2 Lz = m hbar (1/ √2∏) eim∅ 3. The attempt at a solution Lhat2 = 1 (1 + 1)hbar2 Lhat2 = 2 hbar2 Lz = m hbar (1/ √2∏) eim∅ Lz = -1 hbar / √2∏ ei-1∅ = -1 hbar but what about total energy? I'm lost in the forest again and can't see the wood for the trees.