The Periodic Table

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Across
  1. 2. Element used in electrical wiring and to form the base of cooking utensils due to its conductivity properties
  2. 5. Element with atomic mass 79
  3. 8. Element with atomic number 3
  4. 11. Element at the start of the third period
  5. 13. Name of column on the Periodic Table
  6. 15. Elements with metallic and non-metallic properties
  7. 17. First element in the compound name for water
  8. 18. Element with the symbol Fe
  9. 19. Metal that forms a protective coating on iron-containing materials
  10. 21. Elements and compounds that can be separated
  11. 22. Element that reacts with most metals
  12. 24. Element with atomic number with atomic number 7
Down
  1. 1. Group of unreactive gases
  2. 2. Element with the symbol C
  3. 3. Element with atomic mass 31
  4. 4. Most reactive nonmetal
  5. 6. Element with atomic number 12
  6. 7. Element with atomic number 13
  7. 9. Element with the symbol Au
  8. 10. Element with atomic number 20
  9. 12. Only liquid metal
  10. 14. Atoms of the same type
  11. 16. Element with the symbol Ag
  12. 20. Two different elements combined to form a new substance
  13. 23. Name of row on the Periodic Table