Castilla-La Mancha PAU Chemistry (Química - UCLM 2026) Practice Questions - Castilla-La Mancha PAU Chemistry (Química - UCLM 2026) Exam

Which set of quantum numbers (n, l, ml, ms) is valid for the last electron of a ground-state nitrogen atom (Z = 7)?

(2, 1, +1, +1/2) (2, 2, 0, +1/2) (2, 0, +1, -1/2) (1, 1, 0, +1/2)

Correct Answer:

(2, 1, +1, +1/2)

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