sp3d2 hybridization. Example: sulfur hexafluoride (SF6)
sp3
sp3d2
sp3d2
sp3d2
sp3d2
sp3d2
sp3d2
sp3d2
Sulfur tri-oxide is a flat 120 degr. oriented sp2-hybride structure
Xe belongs to the noble gas family so has 8 valence electrons...Xe => 5s25p6....... Two of these are bonded with fluorine. Thus it is left with 6 electronss i.e. 3 lone pairs.... So hybridization is sp3d ....the shape that should be =>Trigonal bipyramidal.... But it has 3 lone pairs on equatorial plane & 2 bond pairs on axial .....so final shape =>LINEAR...
The central atom of PCl5 is P. In this case, phosphorous has an sp3d hybridization. It is connected to 5 other atoms, one more than the 4 for sp3 hybridization.