Across
- 2. occupies mass and space
- 5. free intermolecular space
- 7. strong force of attraction in solids
- 8. substances with less intermolecular space
- 9. Molecules diffuse freely
Down
- 1. high amount of diffusion
- 3. molecules do not vibrate
- 4. Substances that are hard with tightly packed molecules.
- 6. indivisible particles