Here's why:

* Electronegativity: Bromine has the same electronegativity value (2.96). This means that both bromine atoms have an equal pull on the shared electrons in the bond.

* Equal Sharing: Since the electronegativity is equal, the electrons are shared equally between the two bromine atoms. This results in a nonpolar covalent bond.

Let me know if you'd like to explore other types of bonds!