Removing 4s2 gives Mn^2+. Removing 4s2 and 3d5 gives Mn^7+.
3d electrons make the transition in row 3 from Ca to Ga.
The electronic configuration of manganese is:
1s22s22p63d54s2.
a)What is the maximum oxidation state of manganese?
b)Explain how the electronic configuration shows that Mn is a transition element
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