chem- states of matter

• Solid


  State of matter where particles are held close together in a fixed position to form a regular lattice structure
• Liquid


  State of matter where particles are free to move around but are held together by weak forces of attraction
• Gas


  State of matter where particles are free to move around with very weak forces of attraction between them
• Melting


  Solid particles gain energy, vibrate more, and break free of bonds to become a liquid
• Boiling/Evaporation


  Liquid particles gain enough energy to break bonds and become a gas
• Condensation


  Gas particles lose energy and bonds form, becoming a liquid
• Freezing


  Liquid particles lose enough energy for bonds to form, becoming a solid
• Particle theory model


  • Particles are small solid inelastic spheres
  • Explains how particles behave in each state
• The particle theory model is a simplification and doesn't perfectly represent reality</b>
• Particles are actually atoms, ions or molecules, not solid inelastic spheres
• The particle theory model doesn't include details about the forces between particles
• Despite limitations, the particle theory model is a useful simplification to understand the states of matter