Across
- 5. _________ move away
- 8. number above the element
- 9. shiny and glossy
- 10. _________ go toward
- 11. two energy levels 1 valence electron
- 12. elements on the right
- 14. electricity and heat passes
- 15. on the stair case
- 16. the number above the element
- 17. _____ is nor created or destroyed
- 18. up and down on a periodic table
- 20. right side of stair case
Down
- 1. number of atoms
- 2. shatters easily
- 3. groups 1,2,13,14,15,16,17
- 4. left and right on periodic table
- 6. left side of stair case
- 7. not seeable
- 13. less dense and thick
- 19. elements on the left