Which set of quantum numbers n, l, ml, msis permissible for an electron in an atom?

  1. A

    1, 0, 0, 12

  2. B

    1, 1, 0, +12

  3. C

    2, 1, 2, +12

  4. D

    3, 2, 2, 0

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    Solution:

    The  set of quantum numbers n, l, ml, msis permissible for an electron in an atom 1, 0, 0, 12.

    For every number of n, the range for l is 0 to (n-1), the range for m is l to +l, and the range for spin is either +21 or 21.

    Hence, the option A is correct.

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