Answer
The highest oxidation states are:
Sc 3+, Ti 4+, V 5+, Cr 6+, Mn 7+, Fe 6+, Co 5+, Ni 4+, Cu 3+, Zn 2+
Work Step by Step
Starting 3+, the highest oxidation state of a transition metals increases by one and it begins to decreases after manganese until it reaches zinc.