Bromine oxide

Bromine can form several different unstable 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)