Polarity is a phenomenon that occurs in chemistry according to the electric charges of a molecule. This occurs because of the phenomenon that happens when the electric charges are separated from the molecules and the chemical groups in which the molecules are in have an electric dipole moment. The electric dipole moment must have the occurrence of a negatively charged and another positively charged end. The polar molecules also have the polar bonds in them since there has to be a difference between the bonded atoms while possessing electronegativity. There is a probability by which the polarity of a molecule can be determined as well. The process by which the polarity of a molecule is determined can be easily done by determining if a molecule is either a polar one or a nonpolar one, except for the hydrocarbon molecules. This is determined by the finding of the two atoms occurring off the same element and the molecule is capable of completing the Lewis’ Structure. The molecular polarity attains its next stages by helping to find out how the shape of the molecule can be determined with finding out the Lewis’ Structure of the molecule.

From these, it is easily determined that the occurrences of polarity happen to be the relationship between the two opposite characters or tendencies. For, example, the positive and the negative electric charge of a molecule. The polarity is a factor is usually formed off the electron density of the polar bond and also happens to be the accumulation that happens towards the end of the bond as well. This causes the end of the molecule to have an end carry a slight negative charge and the other end happens to possess a slightly positive charge. This is how the ending of the electron charge in the molecule happens to have a positive charge and a negative charge to determine the polarity between them.

In addition to that, there also lies nonpolar atoms as well in a molecule. The primary difference between the polarity of a molecule and the non-polarity of a molecule can also be determined as well. This happens because the polar molecules have the ability to have the uneven distribution of the electrons which causes the ends to have one positive and one negative charge. However, in the nonpolar molecules, the electronegativity of the atoms happens to have difference while in the polar bond. They would most probably have the occurrences of the electronegativity at both the ends to be similar. The way by which the polarity or the non-polarity of the molecule is determined is by the determination is by the drawing up of the Lewis Structure. By checking the molecular geometry, it has been determined that the molecule can either be polar or non-polar. If it is found that the lone pairs of the atoms have odd numbers of the lone pairs in the central atom, the molecule happens to be a polar one. However, on the other hand, having an even number of the lone pairs, the VSEPR structures determines the non-polarity.

In case of the SF₄ molecule, the Lewis structure has the ability of having one lone electron pair and on the other hand, the lone electron pair has an occurrence around the sulphur atom and therefore it can be said that the molecule indeed is polar. There are several factors on which the polarity of the bonds or the non-polarity of the bonds are dependent on. These are the presence of the polar bonds or the lone pairs of atoms present in the molecule and the shape of the molecule. These two factors happen to contribute to the factor by which the net dipole moment of the molecule is clearly determined. As per the VSEPR theory, the lone pair happens to have the molecular geometry where the SF₄ molecule happens to have the see saw shapes. There are two other S-F bonds, which happens to be pointing away from each other and the dipoles present in the bonds get cancelled. On the other hand, the two S-F dipoles were pointing down. Since the bond dipoles do not cancel each other, the molecule happens to be polar. The Electron Geometry on the other hand has a trigonal bipyramidal structure where the sp3d hybridization should be drawn into a 3D structure according to the VSPER rules. The reason why the molecule happens to be polar is that the geometry of the SF₄ has asymmetric electron which has its region distribution around the central atom.