Please solve this question with explanation of the solution....

Dear student,

The incorrect statement is the last one, 'For transition elements, the d-subshells are filled with electrons monotonically with the increase in atomic number.'
As in the case of chromium, the electronic configuration is [Ar] 5d5 4s1, first s sub-shell is filled then 5d orbital is filled. The same case occurs with copper also.
Thus, in transition elements, d-subshells are not filled monotonically.

Regards 

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