Medium
Which of the following sets of quantum numbers is not allowed?
- A$n = 1, l = 0, m = 0, s = +\frac{1}{2}$
- B$n = 1, l = 1, m = 0, s = -\frac{1}{2}$
- C$n = 2, l = 1, m = 1, s = +\frac{1}{2}$
- D$n = 2, l = 1, m = 0, s = -\frac{1}{2}$
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