D-And F-Block Elements Ques 378

Question: Which of the following electronic configuration is that of a transitional element

[NCERT 1983; CPMT 1989, 97; MP PET/PMT 1997; AIIMS 2000; MP PMT 2002]

Options:

A) $ 1s^{2},2s^{2}p^{6},3s^{2}p^{6}d^{10},4s^{2}p^{6} $

B) $ 1s^{2},2s^{2}p^{6},3s^{2}p^{6}d^{10},4s^{2}p^{1} $

C) $ 1s^{2},2s^{2}p^{6},3s^{2}p^{6}d^{2},4s^{2} $

D) $ 1s^{2},2s^{2}p^{6},3s^{2}p^{6},4s^{2} $

Show Answer

Answer:

Correct Answer: C

Solution:

$ 1s^{2},,2s^{2}p^{6},,3s^{2}p^{6}d^{2},,4s^{2} $ .



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