Medium
Which one of the following sets of quantum numbers is not possible for a $4p$ electron?
- A$n=4, l=1, m=-1, m_{s}=+\frac{1}{2}$
- B$n=4, l=1, m=0, m_{s}=+\frac{1}{2}$
- C$n=4, l=1, m=2, m_{s}=+\frac{1}{2}$
- D$n=4, l=1, m=-1, m_{s}=-\frac{1}{2}$
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