At the death of Armisteads widow in 1861, the Star-Spangled Banner was bequeathed to his daughter, Georgiana Armistead Appleton, who recognized that it held national as well as familial significance. As its owner, she permitted the flag to be publicly exhibited on several occasions.
London Dispersion Forces. The London dispersion force is the weakest intermolecular force. The London dispersion force is a temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles. This force is sometimes called an induced dipole-induced dipole attraction.
Thus, they are called intermolecular forces. There are three main types of secondary bonds: dipole-dipole, London dispersion and hydrogen bonds. Hydrogen bond is a special type of dipole-dipole attraction that occurs between a lone pair of electrons on an electronegative atom and a hydrogen atom in a polar bond. The main difference between dipole-dipole and London dispersion forces is that dipole-dipole forces occur among molecules with dipole moment whereas London dispersions occur due to instantaneous dipoles that form in atoms or nonpolar molecules. This article explains, 1.