Bad Qubits — Learn Quantum by Doing

Multiple choice

An electron in a p-state (orbital ell = 1, spin s = 1/2) couples L and S into a total J. What are the allowed total angular momentum quantum numbers j?

j = 2 and j = 1
j = 1 and j = 0 only
j = 3/2 and j = 1/2
j = 3/2 only