Across
- 2. smallest part of an element
- 4. close to nucleus holds 2 electrons
- 6. determine the reactivity of an element
- 9. electricity and heat do not pass through it
- 10. holds 8 electrons
- 13. the elements on the right
- 15. not shiny
- 17. electricity and heat passes through
- 18. properties of both metals and non metals
- 19. the elements on the left of the table are
Down
- 1. run up and down in columns
- 3. located in nucleus,have positive charge
- 5. located in nucleus,have neutral charge
- 7. rows that go from left to right
- 8. holds 18 electrons
- 11. reflects light
- 12. located in electron cloud,have negative charge
- 14. shatters easily
- 16. can be pulled into a wire
- 20. atomic mass unit