Periodic Table Crossword

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Across
  1. 2. Symbol Ni
  2. 4. Atomic Mass 1.008
  3. 5. Atomic number 50
  4. 9. Symbol Hg
  5. 10. Atomic mass 47.867
  6. 12. Symbol Au
  7. 13. Atomic mass 131.294
  8. 15. Atomic number 14
  9. 16. Atomic number 27
  10. 18. Atomic mass 65.38
  11. 19. Atomic number 88
  12. 20. Symbol Ga
  13. 21. Atomic number 35
Down
  1. 1. Atomic number 47
  2. 3. Atomic mass 51.996
  3. 6. Atomic number 82
  4. 7. Symbol Fe
  5. 8. Symbol 86
  6. 11. Atomic number 19
  7. 14. Symbol Ne
  8. 15. Symbol Sc
  9. 17. 4.003