Final answer:
Option B: The correct molecular formula for boron tribromide is BBr₃, which consists of one boron atom and three bromine atoms.
Step-by-step explanation:
The correct formula for boron tribromide is BBr₃. This chemical compound consists of one boron (B) atom and three bromine (Br) atoms. The naming convention for binary molecular compounds involves using prefixes to indicate the number of atoms present (except for the first element if there is only one atom), with 'tri-' signifying three atoms. Therefore, tribromide indicates three bromine atoms are attached to a single boron atom.
Boron trihalides, including boron tribromide, follow this naming convention and usually have a trigonal planar molecular geometry as mentioned for boron trihalides in the provided reference. The correct formula for boron tribromide is BBr₃. Boron tribromide is a compound consisting of one boron atom and three bromine atoms. This compound is a nonpolar molecule with a trigonal planar molecular geometry.