elements in the periodic table

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Across
  1. 3. The element with the chemical symbol "Fe"
  2. 5. The lightest halogen with the symbol "Cl"
  3. 7. A nonmetal with the symbol "C"
  4. 8. A nonmetal with the symbol "N"
  5. 9. An alkaline earth metal with the symbol "Ca"
  6. 11. A transition metal with the symbol "Zn"
  7. 12. A metalloid with the symbol "Ge"
  8. 15. The element with the chemical symbol "H"
  9. 16. The element with the chemical symbol "O"
  10. 18. This element is a metalloid with the chemical symbol "Si"
  11. 19. A transition metal known for its red color, symbol "Cu"
Down
  1. 1. A metal with the symbol "Ag"
  2. 2. An alkali metal with the chemical symbol "K"
  3. 4. A noble gas with the symbol "Xe"
  4. 6. A noble gas with the chemical symbol "He"
  5. 10. A noble gas with the symbol "Ar"
  6. 13. A rare earth element with the symbol "Nd"
  7. 14. A halogen with the symbol "Br"
  8. 17. A noble gas with the chemical symbol "Ne"