The polarity of a bond is determined by... The charges of the atoms The difference in the electronegativities of the two atoms The sum of the electronegativities of the two atoms None of the Above

The polarity of a bond is determined by the difference in the electronegativities of the two atoms. Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. When two atoms with different electronegativities form a bond, the more electronegative atom will pull the electrons closer to itself, resulting in a polar bond. The greater the difference in electronegativities, the more polar the bond will be.