which transition element shows highest oxidation state


Manganese is the 3d series transition element shows the highest oxidation state. The elctronic configuration of Manganese is

Mn(25) = [Ar} 3d5 4s2

The reason why Manganese has the highest oxidation state is because the number of unpaired electrons in the outermost shell is more that is 3d5 4s2.

If we consider all the transition metals the highest oxidation state is eight and the element which shows +8 oxidation state are Ruthenium (Ru) and Os(Osmium).

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