BrF₃ molecule is

Three of the seven bromine valencies in the ${\mathrm{BrF}}_3$ molecule are satisfied by fluorine. Thus, there are 3 bond pairs and 2 lone pairs of electrons surrounding the bromine.${\mathrm{BrF}}_3$thus exhibits ${\mathrm{sp}}^3\mathrm{d}$hybridization. As a result, it should display trigonal bipyramidal geometry; however, two lone pairs of electrons cause it to display a T-shape.