W6A2: Periodic Table assignment

123456789101112131415161718192021222324
Across
  1. 2. Cm
  2. 3. (3,7)
  3. 5. I have 110 neutrons
  4. 7. I am a liquid at room temperature
  5. 9. I am named after Germany
  6. 11. My atomic number is 97
  7. 13. K
  8. 14. My atomic number is 110
  9. 17. I have 73 protons
  10. 18. (2,6)
  11. 21. My atomic number is 52
  12. 23. Os
  13. 24. I am in the 7th period of the 15th group
Down
  1. 1. I have 42 neutrons
  2. 4. I have 24 protons
  3. 6. I am what you breath in
  4. 8. Se
  5. 10. I have 52 neutrons
  6. 12. I have 159 neutrons
  7. 15. Tl
  8. 16. I am in the 4th period of the 2nd group
  9. 19. I am what you breath out
  10. 20. Fm
  11. 22. Ir