Across
- 3. 2,8,18,2
- 6. low kinetic energy
- 7. anion with electronic configuration of 2,8,8
- 8. mistake with atomic number
- 11. outer most electrons
- 13. neutral electronic configuration of 2,8,5
- 14. large spacing between particles
- 15. ...electronic configuration
- 18. 'split' the atom
- 20. ...atomic mass
- 21. basic building block of matter
- 22. fourth period, group two
Down
- 1. between solid and gas
- 2. aurum
- 4. Cf
- 5. in fixed proportion
- 9. turning into a gas
- 10. like a dictionary for chemists
- 12. ...number
- 16. most abundant element in the universe
- 17. changing from a solid to a liquid
- 19. varying substances