Final answer:
The electron configuration of bromine is [Ar] 4s² 3d¹⁰ 4p⁵.
Step-by-step explanation:
The electron configuration of bromine can be determined by referring to the periodic table. Bromine (Br) is located in Group 17, also known as the halogens. It has an atomic number of 35, indicating that it has 35 electrons. To write the full electron configuration, we arrange the electrons in energy levels and orbitals. The electron configuration of bromine is: [Ar] 4s² 3d¹⁰ 4p⁵.