What is the formal charge on the #Br# and #O# atoms in the #BrO_3^-# ion?
1 Answer
Explanation:
The conventional Lewis structure of bromate ion is
Note that the number of electrons around the atom of interest determines the formal charge of that atom; single bonds share the electrons between the bound atoms, lone pairs devolve solely to the atom concerned.
Of course in the actual molecule, all of the oxygen atoms are equivalent.