Name the anion obtained by removing one oxygen atom from the perbromate ion, bro4 -

The ion formed is known as the bromate ion, and it has a chemical formula BrO₃⁻

The bromate ion has two oxygen atoms that have formed two covalent bonds with the bromine atom and one oxygen atom has a single covalent bond with the bromine, yielding an overall charge of - 1. The bromine ion is exhibiting a charge of + 7, while the oxygen ions are exhibiting a charge of - 2.