Periodic Table of the Elements

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Across
  1. 2. Element with an abbreviation of "Au"
  2. 4. Element with an atomic mass of 30.97 amu
  3. 5. Element with an abbreviation of Pd
  4. 7. The number of columns on the periodic table
  5. 10. Abbreviation for Lead
  6. 12. Abbreviation for Magnesium
  7. 13. Element with an atomic number of 74
  8. 14. Element with an atomic mass of 55.84 amu
  9. 17. Element with an atomic mass of 131.29 amu
  10. 18. Element with an abbreviation of "Hg"
  11. 20. Element with an atomic number of 8
  12. 21. The very first element of the table
  13. 22. Element with an atomic number of 85
  14. 23. Element with an atomic number of 47
Down
  1. 1. Element directly above Chlorine
  2. 3. Abbreviation for Copper
  3. 6. Element on the left side of Tellurium
  4. 8. Element with an atomic mass of 14.00 amu
  5. 9. The number of rows on the periodic table
  6. 11. Element with an abbreviation of "B"
  7. 15. Element with an abbreviation of "C"
  8. 16. Element with an atomic mass of 65.38 amu
  9. 17. Element on the right side of Iodine
  10. 19. Abbreviation for Calcium
  11. 21. Element with an atomic mass of 4.00 amu