Leafy Greens. Green leafy vegetables are the richest sources of vitamin K. The highest sources include parsley, kale and Swiss chard. One cup of raw parsley contains 984 micrograms of vitamin K; a cup of raw kale contains 472 micrograms; and 1 cup of raw Swiss chard contains 299 micrograms.
London dispersion forces, under the category of van der Waal forces: These are the weakest of the intermolecular forces and exist between all types of molecules, whether ionic or covalentâpolar or nonpolar. The more electrons a molecule has, the stronger the London dispersion forces are.
Home Â» Nonpolar molecule. Definition. noun, plural: nonpolar molecules. A molecule with nonpolar bonds or with polar bonds but arranged symmetrically. Supplement. Polar bonds may occur in both polar and nonpolar molecules. However, the polar bonds in nonpolar molecules are arranged symmetrically causing dipoles to cancel out each other. As a result, nonpolar molecules have no net dipole. An example of a nonpolar molecule with nonpolar bonds is H2 whereas a nonpolar molecule with polar bonds is CH4.