The charge distribution is unequal throughout, causing the molecule to be polar. In SO3 (below) you also have a trigonal planar structure, but in this case all the substituents are equal in electronegativity. So SO3 is nonpolar, and SO2 is polar because of substituent differences, but especially because of geometry.
is clf3 polar or nonpolar? The molecular geometry of ClF3 is T-shaped with asymmetric charge distribution around the central atom. Therefore ClF3 is polar.
Subsequently, one may also ask, is xecl2 polar or nonpolar?
Decision: The molecular geometry of XeCl2 is linear with symmetric electron region distribution. Therefore this molecule is nonpolar. Xenon dichloride is a rare molecule, but here is one similar: Xenon difluoride on Wikipedia.
Is sio32 polar?
There is a Think of the sulfite ion as a molecule with its geometry and dipole moment AND a net charge. The electron pair geometry is tetrahedral and the molecular geometry is trigonal pyramidal and because of its asymmetrical shape and polar bonds, sulfite has a net dipole moment (2.04D). The ion is polar.
