Final answer:
The bromite anion has Bromine (Br) as its central atom with one lone pair. This leads to a trigonal pyramidal geometry, making the bond angles between Br-O bonds slightly less than the ideal 109.5 degrees due to lone pair repulsion.
Step-by-step explanation:
The central atom in the bromite anion is Bromine, with the chemical symbol Br. Considering the Lewis structure and molecular geometry, the bromite anion consists of a central bromine atom with lone pairs and bonds to surrounding atoms. As per the VSEPR theory, since there are three oxygen atoms bonded to bromine with one lone pair on the bromine atom, the electron domain geometry is tetrahedral. However, with one lone pair, the molecular geometry will be trigonal pyramidal, which distorts the ideal 109.5 degrees angle of a tetrahedral to slightly less due to lone pair repulsion. Therefore, we would expect the actual angle between the bromine-oxygen bonds to be slightly less than the ideal angle due to lone pair-bonding pair repulsion.