In sulfur hexafluoride SF6 , the central atom is sulfur. To determine the hybridization of the central atom, we need to consider the number of electron domains around it.Sulfur has 6 valence electrons, and each of the six fluorine atoms will share one electron with sulfur to form a single covalent bond. This results in a total of 6 electron domains 6 single bonds around the sulfur atom.According to the VSEPR theory, the hybridization that corresponds to 6 electron domains is sp3d2. Therefore, the hybridization of the central atom sulfur in sulfur hexafluoride SF6 is sp3d2.