Select the correct set of quantum numbers (n, l,m l , m s) for the HIGHEST ENERG

Question

Select the correct set of quantum numbers (n, l,ml, ms) for the HIGHEST ENERGY ELECTRON inthe ground state of tin, Sn. A) 5, 2, -1, +1/2 B) 5, 2, 0, +1/2 C) 5, 1, 2, +1/2 D) 5, 1, 0, +1/2 E) 5, 2, 1, +1/2 Ok my professor says that the answer is D but I put E on myexam and got it wrong. Can someone explain to me why theanswer is D? I'm so confused. Select the correct set of quantum numbers (n, l,ml, ms) for the HIGHEST ENERGY ELECTRON inthe ground state of tin, Sn. A) 5, 2, -1, +1/2 B) 5, 2, 0, +1/2 C) 5, 1, 2, +1/2 D) 5, 1, 0, +1/2 E) 5, 2, 1, +1/2 Ok my professor says that the answer is D but I put E on myexam and got it wrong. Can someone explain to me why theanswer is D? I'm so confused.

Explanation / Answer

Ground state electronic configuration of tin ,Sn is (Kr)4d105s25p2 The electron present in 5p2 has highestenergy. The relation between quantum numbers: For a given value of ' n ' , l will have  n-1   to 0 For each 'l' value ml will have (2l+1) values,i,e from   +l to -l ms only have +1/2 or -1/2    For p orbital l value is 1 nadml   must be either of +1 , or 0, or -1    So answer is D. The electron present in 5p2 has highestenergy. The relation between quantum numbers: For a given value of ' n ' , l will have  n-1   to 0 For each 'l' value ml will have (2l+1) values,i,e from   +l to -l ms only have +1/2 or -1/2    For p orbital l value is 1 nadml   must be either of +1 , or 0, or -1    So answer is D.

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