# Can you assign the sulfur oxidation states in "sulfate ion," SO_4^(2-), and "sulfite ion," SO_3^(2-)?

Well, yes...between $\text{sulfate}$, $S {O}_{4}^{2 -}$, and $\text{sulfite}$, $S {O}_{3}^{2 -}$, ions......?
.......These differ by oxidation state. $S {O}_{4}^{2 -}$ exhibits a $S \left(+ V I\right)$ oxidation state. $S {O}_{3}^{2 -}$ exhibits a $S \left(+ I V\right)$ oxidation state. Of course, you can see the difference in the number of oxygen atoms of each species.