Across
- 4. least reactive
- 6. 2VE
- 7. right side
- 12. ability of a substance to be hammered into thin sheets
- 13. rusting
- 14. Known as family
- 15. atomic mass-protons
- 18. man made
- 20. two or more atoms held together by bonds
- 21. solid
Down
- 1. 1VE
- 2. Known as group
- 3. water
- 5. ability to dissolve in another substance
- 7. atomic number
- 8. solid to liquid
- 9. liquid to a gas
- 10. left side
- 11. Horizontal row on the P.T.
- 16. change in shape/form
- 17. change in odor
- 19. simple substances that cannot be broken down