elements crossword

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Across
  1. 2. Is a molecule beginning with s
  2. 3. Found in group 3 period 3
  3. 7. Si in the periodic table
  4. 9. Its atomic number is 30
  5. 12. are easily separated
  6. 13. Found in group one period 6
  7. 14. Its atomic number is 6
  8. 16. water is a?
Down
  1. 1. Found in the periodic table
  2. 4. Found in group 2 period 3
  3. 5. Its symbol is K
  4. 6. Its atomic number is 1
  5. 8. Carbon dioxide is a?
  6. 10. Ni in the periodic table
  7. 11. Fe in the periodic table
  8. 15. Its symbol is Au