[KitCh]

Is this the correct Lewis Structure for BrO₃^-?:

Code: [Select]

::O::Br::O::
     :::
     :O:

So that the charges are 0 (for the O on the left), 0 (for Br),0 (for the O on the right), -1 (for the O at the bottom). I need the formal charges plus the resonance (which I think is 3).

[AWK]

See chlorate in wikipedia for analogy
http://en.wikipedia.org/wiki/Chlorate
Just replace Cl by Br and add 4 electrons to each oxygen atoms and you will get complete correct resonance structures