Periodic table of elements

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1234567891011121314151617181920
Across
  1. 2. The element that has the atomic mass of 132.905
  2. 5. The first element on the periodic table of elements
  3. 6. The element with the symbol Cl
  4. 9. The element with the symbol Pt
  5. 11. The element in group/family 17 period 5
  6. 13. The element with the symbol Ag
  7. 14. The element with the atomic number 10
  8. 15. The element with the atomic number 54
  9. 17. The element with the atomic number 13
  10. 18. The element with the atomic number 2
  11. 19. The element with the symbol Sn
  12. 20. The element in group/family 16, period 2
Down
  1. 1. The element with the symbol Tc
  2. 3. The element with the symbol Mt
  3. 4. The element with the atomic number 15
  4. 7. The element in group/family, period 2
  5. 8. The element with the atomic mass 47.867
  6. 10. The element in group/family 2, period 5
  7. 12. The element with the atomic mass of 39.098
  8. 16. The element with the largest atomic number on the periodic table