Periodic Table Puzzle - Jessica Brown

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Across
  1. 1. I have 88 electrons
  2. 4. [3,5]
  3. 5. I have 5 neutrons, in period 2
  4. 8. I have 31 electrons
  5. 9. I have 6 protons
  6. 11. I have 6 neutrons, in period 2
  7. 13. What are the elements on the left side of the staircase called?
  8. 15. My chemical symbol is Sn
  9. 16. I have 125 neutrons, in group 14
  10. 17. I have 30 neutrons, in group 7
  11. 21. What are the rows on the table called?
  12. 22. My chemical symbol is Zr
  13. 23. My chemical symbol is Cn
  14. 24. What are the elements touching the staircase called?
Down
  1. 2. [9,7]
  2. 3. I have 2 protons
  3. 6. [18,6]
  4. 7. I have 114 protons
  5. 10. I have 125 neutrons, in the halogens family
  6. 12. [18,7]
  7. 14. [13,6]
  8. 18. What are the columns on the table called?
  9. 19. My chemical symbol is Hg
  10. 20. My chemical symbol is W