element fact finding

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Across
  1. 7. used in modern medicine
  2. 10. oderless
  3. 11. discovered in 1791
  4. 13. main components in meteorites
  5. 14. too much can cause eating disorders
  6. 17. colorless
  7. 19. produces light
  8. 22. floats on water
  9. 23. Common in limestone
  10. 25. metalloid and semiconductor
  11. 26. 2% of it is in the earths crust
Down
  1. 1. breaks easily
  2. 2. makes up 80% of the atmosphere
  3. 3. 10% of mass in humans is hydrogen
  4. 4. greenish yellowish color
  5. 5. highly reactive
  6. 6. lightest metal
  7. 8. liquid at room temperature
  8. 9. named after coal
  9. 12. used in light tubes
  10. 15. does not rust
  11. 16. boiling point 3409
  12. 18. 2nd most abundant element in the earths core
  13. 20. Enhances eye sight
  14. 21. Toxic gas
  15. 22. it means moon
  16. 24. Essential for Human Nutrition
  17. 27. it can make you cry just like onions do