What are the attractive forces between particles of a substance? What is the measure of a liquid's resistance to flow? Why do crystalline solids have a precise melting point?

Chemistry Chapter 10 Notes: Liquids and Solids 10.1 Intermolecular Forces Key Ideas: Describe the types of intermolecular forces possible between atoms or molecules in condensed phases (dispersion forces, dipole-dipole attractions, and hydrogen bonding) Identify the types of intermolecular forces experienced by speciﬁc molecules based on their structures Explain the relation between the intermolecular forces present within a substance and the temperatures associated with changes in its physical state - Particle: an atom, molecule or ion - Intermolecular attraction: attractive forces between particles of a substance - Particles in a solid are tightly packed together and often arranged in a regular pattern;