Valence shell electron pair repulsion (vsepr) theory : Your solution’s ready to go! There are 3 lone pairs on all the three bromine atom.
Draw the lewis structure of br3 and then determine its electron domain and molecular geometries. As a result, the molecular geometry is the same as the. The molecular geometry of the br3 lewis structure is trigonal planar.
Due to the lone pair, the molecular shape becomes square pyramidal. There are 2 single bonds between each bromine atom (br). We can use the vsepr model to predict the geometry of most polyatomic molecules and ions by focusing only on the number of electron pairs around the central atom, ignoring all other.