Citation:
A polar covalent bond is a type of chemical bond where a pair of electrons is unequally shared between two atoms. This happens when one atom has higher electronegativity than the other, causing an uneven distribution of charge.
The measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound.
Covalent Bond: A type of strong chemical bond where two atoms share one or more pairs of valence electrons.
Dipole Moment: A measure of the polarity in a system of charges; for molecules, it's created by differences in electronegativity.