Periodic Table Crossword

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Across
  1. 2. I have 22 protons
  2. 4. I have 20 neutrons in group 2
  3. 6. Pu
  4. 7. Atomic number 27, a byproduct of copper and nickel
  5. 10. W
  6. 13. Group 8 Period 6
  7. 14. Bh
  8. 16. Ga
  9. 17. Group 14 Period 6
  10. 18. Fr
  11. 20. I have 45 neutrons in group 17
  12. 21. Hg
Down
  1. 1. At
  2. 3. My atomic number is 68
  3. 5. Atomic number 50, low melting point, is used to package food.
  4. 6. Group 16 Period 6
  5. 8. I have 20 neutrons in group 1
  6. 9. I have 4 neutrons in group 1
  7. 11. Atomic number 10, colorless, odorless, gas. Second lightest noble gas.
  8. 12. I have 76 electrons
  9. 14. Group 2 Period 6
  10. 15. Og
  11. 19. My atomic number is 68
  12. 22. Used in pools to kill bacteria