Coordination number vs. oxidation number for bromine (Br) Element chosen: Br Oxidation number (ON) chosen: -1 Coordination number (CN) chosen: 6 Select any formula to view further details for that compound. Formula VCBOLEXZ± [K(Br)]Br«V1C6O-I» [Rb(Br)]Br«V1C6O-I» Total number of compounds: 2