Final answer:
The percentage ionic character in Br2 is 0%, with the bond type being nonpolar covalent, due to identical electronegativity values leading to equal sharing of electrons.
Step-by-step explanation:
The percentage ionic character and the type of bond in Br2 (electronegativity for Br is 2.8) is 0%; nonpolar covalent. Since the two bromine atoms have the same electronegativity, there is no difference in electronegativity (∆EN = 0), which means that the electrons are shared equally, and the bond is covalent and nonpolar. There is no transfer of electrons to create ions, hence, no ionic character. This is in line with the fact that bonds between two nonmetals, such as Br2, are generally covalent.