MCQ
The correct set of four quantum numbers for the electron present in the valence shell of K (Z = 19) is:
- ✓$n =4, l=0, m=0, s=+1 / 2$
- B$n =3, l=0, m=0, s=-1 / 2$
- C$n =4, l=1, m=+1, s=+1 / 2$
- Dnone of the above
✓
Answer
Correct option: A.
$n =4, l=0, m=0, s=+1 / 2$
A
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