Bromine can form several different oxides:
Dibromine monoxide (Br2O) Bromine dioxide (BrO2) Dibromine trioxide (Br2O3) Dibromine pentoxide (Br2O5) Tribromine octoxide (Br3O8) Also, a number of ions are bromine oxides:
Hypobromite (BrO−) Bromite (BrO2−) Bromate (BrO3−) Perbromate (BrO4−) And the bromine monoxide radical:
Bromine oxide (BrO)
See also Oxygen fluoride Chlorine oxide Iodine oxide