SeF4 and XeO2F2 are both sp3d hybridized, trigonal bi-pyramidal and see-saw shaped with 1 lone pair of electrons each. SF4 has 1 lone pair, XeF2 has 3 lone pairs XeOF4 is square pyramidal with 1 lone, TeF4 is see-saw shaped wtih 1 lone pair, SeCl4 has see-saw shape with 1 lone pair, XeF4 has planar shape with 2 lone pairs.
