Chemistry101

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Across
  1. 3. - common polymer (monomer involved in ripening of fruits)
  2. 5. - come to the chemists mind when looking at Department of War
  3. 7. - fuel for camping stove
  4. 9. - lightest element
  5. 11. - important plant food, present in DNA
  6. 15. - you breath it
  7. 16. - each atom of it has the same number of protons
  8. 17. - important plant food
  9. 18. - yellow gas (think swimming pool or bleach)
Down
  1. 1. - name of this element has something in common with the name of geological era
  2. 2. - found in sugar
  3. 4. - hydrocarbon with 1 carbon atom
  4. 6. - hydrocarbon with 2 carbon atoms
  5. 8. of an element has the same number of protons but different number of neutrons
  6. 10. - of carbon is not as harmful as its monoxide, but you should avoid elevated concentrations of it
  7. 12. - a neutral atom has the same number of those as the number of protons
  8. 13. - compounds containing this element are necessary as plant food
  9. 14. - noble gas, you talk funny when you breath it