Multiple choice

Which of the following sets of quantum numbers is possible for an electron in a 4f orbital?

  1. n = 4, I = 3, m = 4, s = 1/2

  2. n = 4, I = 4, m = 0, s = 1/2

  3. n = 4, I = 2, m = - 1, s = 1/2

  4. n = 4, I = 3, m = - 2, s = 1/2
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D Correct answer
Explanation

The following set of quantum numbers is possible for an electron in a 4f orbital: n = 4 l = 0, 1, 2, 3 m = 0, (- 1, 0, 1), (- 2, - 1, 0, 1, 2), (- 3, - 2, - 1, 0, 1, 2, 3) s = +1/2 or -1/2

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