The correct set of four quantum numbers for outermost electron of potassium (Z=19) is

Question

The correct set of four quantum numbers for outermost electron of potassium (Z=19) is (A)  4, 1, 0, (1/2)  (B)  3, 1, 0, (1/2)  (C)  4, 0, 0, (1/2)  (D)  3, 0, 0, (1/2)

Tardigrade Admin · Accepted Answer

K(19): 1 s2, 2 s2 2 p6, 3 s2 3 p6, 4 s1 4 s1 is the valence electron in potassium, hence the correct set of four quantum numbers for outermost electron is 4,0,0, (1/2).

Q. The correct set of four quantum numbers for outermost electron of potassium $(Z = 19)$ is

$4, 1, 0, \frac{1}{2}$

$3, 1, 0, \frac{1}{2}$

$4, 0, 0, \frac{1}{2}$

$3, 0, 0, \frac{1}{2}$

$K (19) : 1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{2} 3 p^{6}, 4 s^{1}$
$4 s^{1}$ is the valence electron in potassium, hence the correct set of four quantum numbers for outermost electron is $4, 0, 0, \frac{1}{2}$ .

Q. The correct set of four quantum numbers for outermost electron of potassium (Z=19) is

4,1,0,21​

3,1,0,21​

4,0,0,21​

3,0,0,21​