* Bromine (Br) is a nonmetal. Nonmetals tend to share electrons rather than gain or lose them.
* Both bromine atoms have the same electronegativity. Electronegativity is the measure of an atom's ability to attract electrons. Since they have the same electronegativity, they share the electrons equally.
* No charge separation. Because the electrons are shared equally, there is no partial positive or negative charge on either bromine atom.
Therefore, the bond between two bromine atoms is a nonpolar covalent bond.
