These phenomena are modelled by the "r to the minus 6" term in the Lennard-Jones potential. One of these phenomena increases in strength with increasing polarizability, and thus with larger electron clouds, explaining why bromine is a liquid at STP. These phenomena are particularly strong in (*) water, explaining its high boiling point. One of these phenomena is the result of induced dipoles, and another is the result of 
These phenomena are modelled by the "r to the minus 6" term in the Lennard-Jones potential. One of these phenomena increases in strength with increasing polarizability, and thus with larger electron clouds, explaining why bromine is a liquid at STP. These phenomena are particularly strong in (*) water, explaining its high boiling point. One of these phenomena is the result of induced dipoles, and another is the result of a highly electronegative element bonded to hydrogen. For 10 points, what forces, including dipole-dipole interactions, London dispersion forces, and hydrogen bonds, cause attraction and repulsion between molecules?
These phenomena are modelled by the "r to the minus 6" term in the Lennard-Jones potential.
intermolecular forces [accept van der Waals forces; if they answer with "hydrogen bonds," "dipole-dipole interactions," or "London dispersion forces," prompt by saying "They want something more general."]