What is the complete set of quantum numbers for the fifth electron added to a hydrogen ion?

1s2 2s2 2p1

fifth electron is in 2p orbital

so answer is 2 2 - 1 - 1/2, or 2 2 - 1 1/2

*1/2 and - 1/2 are spins, so they are interchangeable when writing the first electron in the ml