With each set of elements and their electronegativities, determine if the electrons will be shared equally (non-polar, NPC) or unequally (polar, PC) between the two atoms when they bond together. For polar bonds, use &* or 8 to indicate the resulting slightly positive and slightly negative atoms, respectively. Then, use an arrow (+--> or <--+)
above the bond to show the resulting direction of polarity in each bond.