A polar covalent bond is a form of covalent bonding that happens when atoms of two different elements with different electronegativities bond resulting in an unequal sharing of electrons. And two bonding atoms have an electronegativity difference that is greater than 0.5 but less than 1.6. Examples include water and hydrogen chloride. The bonding electrons in such bonds are associated more with the more electronegative atom than the other. One side of the molecule has a partial positive charge while the other side has a partial negative charge. In hydrogen chloride (HCl) for example, the chlorine atom has a greater attraction for the electrons than the hydrogen atom does. Thus the chlorine end is slightly negative while the hydrogen end is slightly positive. This produces a molecular dipole or polar molecule. In water, the oxygen atom has a slightly negative charge while the hydrogens are slightly positive because the oxygen has a greater attraction for electrons. Covalent bonding is a form of chemical bonding characterized by the sharing of one or more pairs of electrons between atoms, in order to produce a mutual attraction, which holds the resultant molecule together. ... Properties For alternative meanings see atom (disambiguation). ... Electronegativity is a measure of the ability of an atom or molecule to attract electrons in the context of a chemical bond. ... Properties The electron (also called negatron, commonly represented as e−) is a subatomic particle. ... A girl in a swimming pool Water (from the Old English waeter; c. ... R-phrases , S-phrases , , , , Flash point non-flammable Supplementary data page Structure and properties n, εr, etc. ... In general, a molecule is the smallest particle of a pure chemical substance that still retains its composition and chemical properties. ... General Name, Symbol, Number chlorine, Cl, 17 Chemical series halogens Group, Period, Block 17, 3, p Appearance yellowish green Atomic mass 35. ... ‹ The template below has been proposed for deletion. ... The Earths magnetic field, which is approximately a dipole. ...