Polar Covalent Bonds

• Covalent bonds that have a dipole moment are called polar covalent bonds.
• The magnitude of the dipole moment, and the polarity of the bond, depend on the electronegativity difference between the two elements in the bond and the length of the bond.
• For a fixed bond length, the greater the electronegativity difference, the greater the dipole moment and the more polar the bond.