E-L-E-M-E-N-T

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Across
  1. 3. 25% of the nickel coin
  2. 5. can be recycled
  3. 6. 2% earth's crust
  4. 11. is colorless
  5. 13. immune system
  6. 15. colorless
  7. 17. harder than steel
  8. 18. 8.2% of earth's crust
  9. 19. has a charge of 0
  10. 21. 10th most abundant
  11. 24. made in a lab
  12. 26. hard
  13. 27. everywhere
Down
  1. 1. 100% recyclable
  2. 2. means new in Greek
  3. 4. state of liberty
  4. 7. developed industrially
  5. 8. highly reactive
  6. 9. green-yellowish
  7. 10. 2nd most abundant
  8. 12. natural state is metal
  9. 14. atomic number is 35
  10. 16. can be broken
  11. 20. light metal
  12. 22. is toxic
  13. 23. number 3
  14. 25. atomic number 21