What is the charge of the iodite ion?

The iodite ion is represented as I(O2) or I(OH). It consists of iodine and two oxygen atoms. The total charge of the iodite ion is -1. In the context of the provided options, they focus on the oxygen species instead of the overall ion, but the most relevant option here refers to the ratio and presence of oxygen atoms within the ion.

When considering the options related to the charge of oxygen species, the one that correctly references a sum that correlates to the composition of the iodite ion in terms of its involvement with oxygen and common oxidation states would be O2(-) as it suggests that there are two oxygen atoms contributing to the overall charge.

In summary, the choice of O2(-) aligns with the formation of the iodite ion, where two oxygen atoms are present and contribute to its charge characteristics.