MCQ
All electrons on the $4p$ sub-shell must be characterized by the quantum number $(s)$
  • A
    $n = 4,\,m = 0,\,s = \pm \frac{1}{2}$
  • $l = 1$
  • C
    $l = 0,\,s = \pm \frac{1}{2}$
  • D
    $s = \pm \frac{1}{2}$

Answer

Correct option: B.
$l = 1$
b
$n=4, m=0$

$s=\pm 1 / 2$

$l=1 \quad s=0, s=\pm 1 / 2$

$s=\pm 1 / 2$

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