Across
- 3. atoms far apart
- 5. not a metal
- 6. kinetic energy of particles
- 8. outer shell electron
- 13. observed in chemical reaction
- 14. particle with no electric charge
- 16. related to metal
- 18. orbit around nucleus
- 19. conforms to container shape
- 21. small portion of matter
- 22. mass of an atom
- 24. observed characteristic of matter
- 25. continuos force on an object
Down
- 1. electromatic property
- 2. three states
- 4. explains gas particles
- 7. based on orbitals
- 9. force holding electons
- 10. particel with a negative charge
- 11. particle with a positive charge
- 12. basic unit of an element
- 15. central core of an atom
- 17. defined by nymber of protons
- 20. takes up space and has mass
- 23. atoms compacted together