Which of these sets of quantum numbers is NOT allowed for an electron?
Answer and explanation
Correct answer: A. n = 2, l = 2, m = 0
- Step 1: The azimuthal number can only run from 0 to , so for the value is impossible. Answer: n = 2, l = 2, m = 0. Why not the others: n = 3, l = 2, m = -2, n = 2, l = 1, m = 1 and n = 1, l = 0, m = 0 don't fit.
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