Question

Which of the following species have same no of unpaired electrons
2+
+2
(a) Cr3+
(b) Mn?
(c) Fe(d)Zn​

Answer 1

Answer:

MN......is the correct answer

Answer 2

Answer:

1.Cr−24 electrons are present:[Ar]3d

5

4s

1

. Cr

3+

means 3 electrons are lost (1electron from 4s and 2 electrons from 3d),so totally 3 unpaired electrons are present.

2.Mn−25 electrons are present:[Ar]3d

5

4s

2

.