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SSC CHSL 2023 PYQ — Question 38

SSC CHSL 2023 - 03 Aug 2023 - Shift 1 • General Awareness • Q38

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Which are the four quantum numbers for an electron present in 4f orbital?

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Correct answer: A

Explanation

The correct answer is option 1 i.e. n = 4, I = 3, m = +1, s = +1/2.

For an electron in a 4f orbital, the four quantum numbers are:

  1. Principal Quantum Number (n): 4
  2. Azimuthal Quantum Number (l): 3 (for f orbitals)
  3. Magnetic Quantum Number (mₗ): Ranges from -3 to +3, so possible values are -3, -2, -1, 0, +1, +2, +3.
  4. Spin Quantum Number (mₛ): Can be either +1/2 or -1/2, indicating the electron's spin direction.