question_answer

Which of the following has maximum unpaired \[d-\]electrons?

A) \[Z{{n}^{2+}}\]                                 

B)        \[F{{e}^{2+}}\]

C)        \[N{{i}^{2+}}\]                                  

D)        \[C{{u}^{+}}\]

Correct Answer: B

Solution :

(a) (b) (c) (d) Hence, \[F{{e}^{2+}}\] ion have maximum number of unpaired electrons.