D-And F-Block Elements Ques 411

Question: Identify the transition element

[MH CET 2003]

Options:

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

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

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

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

Show Answer

Answer:

Correct Answer: B

Solution:

We know that transition element are those element which have partially filled d-subshell in their elementary form.

Therefore, the general electronic configuration of d-block element is $ (n-1)\ {{d}^{1-10}}n{{s}^{1-2}} $ .



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