What is the electron configuration for $Mn^(3+)$ ?

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Answer 1 · 2016-01-31T19:25:09

For manganese, $Z$ $=$ $25$ .

Electron configuration: $1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)4s^(2)3d^(5)$

For $Mn^(3+)$ , the $s$ electrons are removed FIRST, to yield a configuration of $1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(4)$ .

What is the electron configuration for Mn^(3+)Mn^(3+)?