Periodic Table Crossword

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Across
  1. 4. The atomic mass is 63.546
  2. 6. The atomic mass is 10.81
  3. 7. The atomic mass is 40.078
  4. 10. The atomic mass is 58.6934
  5. 11. The atomic mass is 35.453
  6. 13. The atomic mass is 226
  7. 14. The atomic mass is 55.845
  8. 16. The atomic mass is 6.941
  9. 18. The atomic mass is 20.18
  10. 20. The atomic mass is 24.305
Down
  1. 1. The atomic mass is 1.00784
  2. 2. The atomic mass is 39.0983
  3. 3. The atomic mass is 126.90447
  4. 5. The atomic mass is 222
  5. 8. The atomic mass is 200.59
  6. 9. The atomic mass is 22.989769
  7. 11. The atomic mass is 140.116
  8. 12. The atomic mass is 4.0026
  9. 15. The atomic mass is 26.981539
  10. 17. The atomic mass is 232.038
  11. 19. The atomic mass is 65.38