Periodic Table

1234567891011121314151617
Across
  1. 2. Good conductor for electricity
  2. 4. Metal used for cans
  3. 7. Atomic mass 127
  4. 8. Metal that is liquid room temp
  5. 10. Atomic number 90
  6. 11. Atomic number 27
  7. 13. Gas used in balloons
  8. 15. Atomic mass 20
  9. 16. Atomic number 5
  10. 17. Atomic symbol is Fe
Down
  1. 1. Atomic mass is 45
  2. 3. Atomic Symbol is S
  3. 4. Used in rat poison
  4. 5. Atomic Symbol Na
  5. 6. More mass He less than Be
  6. 9. Atomic number is 35
  7. 12. What we breathe
  8. 14. More mass than B less than N