Mn3+ Electron Configuration

Electronic configuration of Mn 3+ HELP !? 3

10 easy points. I've tried everything but I couldn't find it! I tried [Ar] 4s2 3d2, but your answer is wrong.

The electron configuration of Mn is: [Ar] 4s2 3d5

When Mn loses electrons to make the atom ion, 4s2 electrons go first, like this:

Mn2 + will have 3d5 [Ar] configuration.

Then 3d electrons pass so that Mn3 + has 3d4 [Ar] configuration.

This is [Ar] 4s2 3d5 for Mn.

For the Mn3 + ion, it could be [Ar] 3d4 because it has 3 fewer electrons.

We will

Master in Chemistry

This is a long arm setup.

1s22s22p63s23p63d4

Mn3+ Electron Configuration