Multiple choice

Which set of quantum numbers is not applicable for an electron in atom? A. n = 1, l = 0, m = 0, s = + 1/2 B. n = 1, l = 1, m = 1, s = + 1/2 C. n = 1, l = 0, m = 0, s = - 1/2 D. n = 2, l = 0, m = 0, s = + 1/2

  1. Only A

  2. Only B

  3. Only C

  4. Only D

  5. B and D
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

‘n’ and ‘l’ can never have same numerical value, ‘l’ is always less than ‘n’, so it is not applicable for an electron in atom.

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