periodic table

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12345678910111213141516171819
Across
  1. 2. The zinc group
  2. 4. Earth metals
  3. 5. used for fire alarms
  4. 7. 50 on the periodic table
  5. 9. the alkali metals
  6. 11. 30 on the periodic table
  7. 12. the symbol of C
  8. 15. 2 on the periodic table
  9. 17. 79 on the periodic table
  10. 18. above the Atomic symbol
  11. 19. 7 on the periodic table
Down
  1. 1. 78 on the periodic table
  2. 3. 98 on the periodic table
  3. 6. 22 on the periodic table
  4. 8. the symbol of fe
  5. 10. 3 on the periodic table
  6. 13. used for breathing and 8 on the periodic table
  7. 14. 47 on the periodic table
  8. 16. the ions