What are the electron and molecular geometries, respectively, for iodine trifluoride, IF3? Electron geometry is trigonal bipyramidal. Molecular geometry is trigonal planar. Electron geometry is trigonal bipyramidal. Molecular geometry is T-shaped. Electron geometry is octahedral. Molecular geometry is T-shaped. Electron geometry is trigonal planar. Molecular geometry is trigonal bipyramidal.