Which of the following electronic configuration does not belongs to d-block ?[Xe] 6s2 5d1[Rn] 7s2 6d1[Rn] 7s2 6d2[Xe] 6s2 5d2 4f14
Question
Which of the following electronic configuration does not belongs to d-block ?[Xe] 6s2 5d1[Rn] 7s2 6d1[Rn] 7s2 6d2[Xe] 6s2 5d2 4f14
Solution
The electronic configuration that does not belong to the d-block is [Xe] 6s2 5d2 4f14. This is because it includes a 4f subshell, which is characteristic of the f-block elements, not the d-block. The other three configurations all end with a d subshell, which is characteristic of the d-block elements.
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