Question

write down electronic configuration of fe3+ ion and answer the following

1) what is the number of unpaired electrons in it
2) how many electrons in it have n=3 and m=0
3) how many electrons in it have L=1
4) what is the no of electrons in m shell

Answer 1

Answer:

4

Explanation:

The atomic number of Fe is 26 and its electronic configuration is [Ar]4s

2

3d

6

.

Thus, the electronic configuration of Fe

3+

is [Ar]3d

5

.

Hence, it has 5 unpaired electrons in the d subshell.