Which electron is associated with the least energy?

  • A
    $n = 3, l = 2, m = -2, s = +1/2$
  • B
    $n = 4, l = 0, m = 0, s = +1/2$
  • C
    $n = 4, l = 1, m = +1, s = +1/2$
  • D
    $n = 5, l = 0, m = 0, s = +1/2$

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