Question: does xef4 have a dipole moment?
Answer: There is a difference in electronegativity between Xe and F, so the Xe-F bonds are polar covalent. XeF4 has a square planar shape, due to the repulsions between four bonding regions and two non-bonding regions of charge; therefore the polarities/dipoles do cancel. As a result, XeF4 is a non-polar molecule.