 Tennessine monofluoride should feature the strongest bonding of all group 17 monofluorides.VSEPR theory predicts a bent-T-shaped molecular geometry for the group 17 trifluorides.All known halogen trifluorides have this molecular geometry and have a structure of AX3E2—a central atom, denoted A, surrounded by three ligands, X, and two unshared electron pairs, E. If relativistic effects are ignored, TsF3 should follow its lighter congeners in having a bent-T-shaped molecular geometry.