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Question 600208
JEE Chemistry · Medium

Atomic Structure: Quantum Numbers MCQ

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Quantum NumbersMediumQuestion 600208

Question

The maximum number of electrons in the M shell (n=3) is:
  1. A
    8
  2. B
    10
  3. C
    18
    Correct
  4. D
    32

Correct answer

18

Explanation

Max electrons in nth shell = 2n². For n=3: 2×9 = 18. The M shell has 3s, 3p, 3d subshells.

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