Periodic table

1234567891011121314
Across
  1. 2. a chemical element; it has symbol Na and atomic number 11.
  2. 3. a chemical element; it has symbol S and atomic number 16.
  3. 5. a chemical element; it has symbol O and atomic number 8.
  4. 9. a chemical element; it has symbol Ar and atomic number 18.
  5. 12. a chemical element; it has symbol F and atomic number 9.
  6. 13. a chemical element; it has symbol N and atomic number 7.
  7. 14. a chemical element; it has symbol Al and atomic number 13
Down
  1. 1. a chemical element; it has symbol Li and atomic number 3
  2. 2. a chemical element; it has symbol Si and atomic number 14.
  3. 4. a chemical element; it has symbol K and atomic number 19
  4. 6. a chemical element; it has symbol Xe and atomic number 54.
  5. 7. a chemical element; it has symbol H and atomic number 1
  6. 8. a chemical element; it has symbol C and atomic number 6.
  7. 10. a chemical element; it has symbol He and atomic number 2.
  8. 11. a chemical element; it has symbol B and atomic number 5