1. Tardigrade
  2. Question
  3. Chemistry
  4. Which one of the following sets of quantum numbers is possible for an electron in a 4f-orbital? n l m s 4 3 +4 +1/2 4 3 +1 -1/2 4 4 +4 -1/2 4 2 +4 +1/2

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Q. Which one of the following sets of quantum numbers is possible for an electron in a 4f-orbital?
n l m s
4 3 +4 +1/2
4 3 +1 -1/2
4 4 +4 -1/2
4 2 +4 +1/2

NTA AbhyasNTA Abhyas 2020Structure of Atom

Solution:

Here quantum number set given in option B is correct for a 4f-orbital.

For 4f-orbital, n = 4 and l = 3. When l = 3, the possible values of m range from -3 to +3 including zero. The value of m cannot be greater than 'l'.