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Across 2. the forces of attraction between molecules 8. high boiling points are characteristics of these bonds 9. intermolecular forces act on these 10. this is a special type of dipole-dipole force that is very strong 11. covalent bonds have low these points 13. this force is not effective in gases 14. when were London dispersion forces discover

Down 1. the number of electrons present are proportional to this. 3. London dispersion forces affect these molecules 4. a measure of the strength of the forces that hold particles together 5. polarity is measured by this 6. interaction between polar molecules 7. dipole-dipole forces and London dispersion force are both experienced by these molecules 8. attraction between oppositely charged ions 12. in dipole-dipole molecules, on side is slightly more postive while the other is this