The Periodic Table of Elements

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Across
  1. 3. has an atomic number of 9
  2. 4. element symbol is K
  3. 7. element symbol is Hg
  4. 8. group 14 Period 2
  5. 10. has an atomic number of 56
  6. 12. group 15 Period 3
  7. 14. group 11 Period 6
  8. 16. group 10 Period 4
  9. 18. atomic mass is 40.078
  10. 19. element symbol is Na
  11. 20. element symbol is Pb
  12. 22. atomic mass is 226.025
  13. 23. has 53 protons
Down
  1. 1. atomic mass is 208.982
  2. 2. has 96 protons
  3. 5. atomic mass is 32.066
  4. 6. has an atomic number of 27
  5. 8. has an atomic number of 24
  6. 9. element symbol is Au
  7. 11. group 2 Period 3
  8. 13. group 18 Period 1
  9. 15. group 18 Period 2
  10. 17. group 1 Period 1
  11. 21. has 18 protons
  12. 24. element symbol is Fe