Electronegativity difference and polarity

[206189669]

At what point in electronegativity difference does a bond go from nonpolar covalent to polar covalent?

[106046096]

Hi! For a nonpolar covalent bond, the difference has to be less 0.5. If the difference is more than 0.5 but less than 2, the bond is a polar covalent bond.

[Isabelle Huerta 2I]

Nonpolar Covalent Bond: This occurs when the electronegativity difference between two atoms is very small or nonexistent. Generally, a difference of less than 0.5 in electronegativity is considered indicative of a nonpolar covalent bond. In these cases, the shared electrons are evenly distributed between the atoms. Polar Covalent Bond: A polar covalent bond arises when there is a moderate difference in electronegativity between the two atoms, typically ranging from 0.5 to 1.7 on the Pauling scale. When the electronegativity difference exceeds 1.7, the bond is often classified as an ionic bond rather than a polar covalent bond