Oxyanions that contain elements in the same group of the periodic table have an analogous formula and are also named in a similar convention. Referring to this information, predict the chemical formula of dihydrogen arsenite.

The same general formula is observed for oxyanions in the same group and is therefore named similarly 

Identify the names of the oxyanions of bromine and iodine BrO₃⁻, BrO₄⁻, IO₃⁻, IO₄⁻

Identify either the name or the formula for each of the following pairs

A.                ion : NO₃^-

B. Phosphite ion :         

C. Phosphate ion :         

D.              ion : OH^-

Which of the following does not have a charge of –1?