1.

Which of the following represents the electronic configuration of a transition element?A. `1 s^(2), 2 s^(2) p^(6)`…………………..`n s^(2) p^(3)`B. `1 s^(2), 2 s^(2) p^(6)`…………………..`n s^(2) p^(6)`C. `1 s^(2), 2 s^(2) p^(6)`…………………..`n s^(2) p^(3) d^(10), (n + 1) s^(2) p^(1)`D. `1 s^(2), 2 s^(2) p^(6)`…………………..`n s^(2) p^(3) d^(3), (n + 1) s^(2)`

Answer» Correct Answer - D
`1s^(2), 2s^(2), p^(6) ………..ns^(2) p^(6) d^(3), (n + 1) s^(2)` as last electron enters d-subshell.


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