Why is water polar based on oxygen's pull on electrons as compared to Hydrogen's?

1 Answer
Sep 15, 2016

Because the oxygen atom in water tends to polarize electron density towards itself.


Because of the high nuclear charge of the oxygen atom, it tends to polarize electron density. The result is a molecule we could represent as #""^(delta+)H-^(delta-)O-^(delta+)H#, i.e. a dipole.