Question
Question: The number of d-electrons retained in Fe2+ (At. no. Fe = 26) ions are :...
The number of d-electrons retained in Fe2+ (At. no. Fe = 26) ions are :
A
3
B
4
C
5
D
6
Answer
6
Explanation
Solution
Fe26–[Ar]3d64s2
Fe2+(24 electrons) – [Ar] 3d64s0