MCQ
The four quantum numbers of the valence electron of potassium are
- A$4, 1, 0$ and $\frac{1}{2}$
- B$4, 0, 1 $ and $\frac{1}{2}$
- ✓$4, 0, 0$ and $ + \frac{1}{2}$
- D$4, 1, 1 $ and $\frac{1}{2}$
✓
Answer
Correct option: C.
$4, 0, 0$ and $ + \frac{1}{2}$
c
(c) Atomic number of potassium is 19 and hence electronic configuration will be
(c) Atomic number of potassium is 19 and hence electronic configuration will be
$1{s^2},\,2{s^2},\,2{p^6},\,3{s^2},\,3{p^6},\,4{s^1}$
Hence for $4{s^1}$ electron value of Quantum number are
Principal quantum number $n = 4$
Azimuthal quantum number $l = 0$
Magnetic quantum number $m = 0$
Spin quantum number $s = + 1/2$
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