InterviewSolution
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InterviewSolution
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Which of the following sate of quantum numbers is not permissible for an electron in an atom? (i) `n = 1,l = 1, m_(l) 0, m_(s) =+ 1//2` (ii) `n = 3, l = 1, m_(1) =- 2, m_(s) =- 1//2` (iii) `n =1, l = 1, m_(l) = 0, m_(s) =+ 1//2` (iv) `n = 2, l = 0, m_(l) = 0, m_(s) = 1`A. `(i),(ii),(iii),(iv)`B. `(ii),(iii),(iv)`C. `(i),(ii),(iv)`D. `(i),(iii),(iv)` |
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Answer» Correct Answer - C (i) is not permissible because the `l` quantum number is equal to `n,` it must be less than `n`. (ii) is not permissible because the magnitude of the `m_(l)` quantum number (that is, the `m_(l)` value, ignoring its sign) must not be greater than `l`. (iv) is not permissible beacuse `m_(s)`,quantum number can be only `+1//2` or `-1//2`. |
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