Final answer:
Bromine (Br) is the nonmetal in the given options. It belongs to the halogens, which are a group of nonmetals in the periodic table.
Step-by-step explanation:
The nonmetal in the given options is Br (bromine). Bromine is a member of Group 17, also known as the halogens, which are nonmetals. The halogens include fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). These elements are nonmetals and react readily with metals to form compounds.