Class 11 NEET Chemistry Chemical Bonding And Molecular Structure Part 1

SiF4 has symmetrical tetrahedral shape which is due to sp3 hybridisation of the central silicon atom in its excited state configuration.
SF ‌4 has distorted tetrahedral or see-saw geometry which arises due to sp3d hybridisation of central sulphur atom and due to the presence of one lone pair of electrons in one of the equatorial hybrid orbital.