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Question 600234
JEE Chemistry · Medium

Atomic Structure: Quantum number validity MCQ

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Quantum number validityMediumQuestion 600234

Question

Which set of quantum numbers is NOT possible?
  1. A
    n=2, l=1, ml=0, ms=+1/2
  2. B
    n=3, l=2, ml=−2, ms=−1/2
  3. C
    n=2, l=2, ml=1, ms=+1/2
    Correct
  4. D
    n=4, l=3, ml=+3, ms=+1/2

Correct answer

n=2, l=2, ml=1, ms=+1/2

Explanation

l can be 0 to (n−1). For n=2, l can be 0 or 1 only. l=2 is not allowed when n=2. This set is invalid.

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