W6A2: Periodic Table Puzzle

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Across
  1. 4. My chemical symbol is P
  2. 6. have 73 electrons
  3. 7. I have 30 neutrons and I am in group 7
  4. 8. I have 13 protons
  5. 10. The rows on the periodic table
  6. 12. The columns on the periodic table
  7. 14. I have 51 neutrons and I am in group 4
  8. 16. I am found in group 2, period 4
  9. 17. My chemical symbol is Si
  10. 18. The atomic number is on the top...
  11. 21. My atomic number is 83
  12. 22. I am found in group 9, period 6
  13. 23. I am found in group 8, period 7
Down
  1. 1. My chemical symbol is Rn
  2. 2. I am found in group 12, period 5
  3. 3. I have 22 neutrons and I am in group 18
  4. 5. I have 60 neutrons and I am in group 10
  5. 9. I have an atomic number of 91
  6. 11. I am located in group 5,period 4
  7. 13. I have 6 neutrons and I am in group 14
  8. 15. My chemical symbol is I
  9. 17. The letter that represents and element
  10. 19. I have 68 protons
  11. 20. My chemical symbol is Hs