MCQ
For which of the following sets of quantum numbers, an electron will have the highest energy?
  • A
    $n=3,\, l=2,\, m=1,\, s=\,-1/2$
  • $n=4,\, l=3,\, m=\,-1,\, s=+1/2$
  • C
    $n=4,\, l=1,\, m=\,-1,\, s=+1/2$
  • D
    $n=5,\, l=0,\, m=0,\, s=\,-1/2$

Answer

Correct option: B.
$n=4,\, l=3,\, m=\,-1,\, s=+1/2$
b
Energy of electron $= n + l$ , higher is the value of $n + l$ more is energy of electron

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