Medium
The four quantum numbers of the valence electron of potassium are
- A$4, 1, 0$ and $\frac{1}{2}$
- B$4, 0, 1$ and $\frac{1}{2}$
- C$4, 0, 0$ and $+\frac{1}{2}$
- D$4, 1, 1$ and $\frac{1}{2}$
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