Chemistry crossword

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Across
  1. 2. atomic mass 63.546u
  2. 5. atomic mass 118.71
  3. 6. boiling point 2963c
  4. 9. melting point 660.32c
  5. 10. boiling point 182.96c
  6. 11. boiling point 2861c
  7. 12. atomic mass 83.798
  8. 14. atomic mas 69.723
  9. 16. boiling point 2162c
Down
  1. 1. boiling point 3271.85c
  2. 3. melting point 1414c
  3. 4. atomic mass 12.011c
  4. 7. boiling 1749c
  5. 8. discovery date 1735
  6. 13. atomic mass 18.998
  7. 15. melting point 156.63c