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

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