Vocabulary

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Across
  1. 3. symbol Na atomic number 11
  2. 5. symbol C atomic number 6
  3. 7. symbol Mg atomic number 12
  4. 8. symbol Si atomic number 14
  5. 10. symbol Li atomic number 3
  6. 12. symbol B atomic number 5
  7. 15. symbol F atomic number 9
  8. 16. symbol He atomic number 2
  9. 17. symbol B atomic numbern 4
Down
  1. 1. symbol P atomic number 15
  2. 2. symbol Ca atomic number 20
  3. 4. symbol N atomic number 7
  4. 6. symbol Al atomic number 13
  5. 9. symbol Cl atomic number 17
  6. 11. symbol H atomic number 1
  7. 13. symbol S atomic number 16
  8. 14. symbol Ne atomic number 10
  9. 18. symbol O atomic number 8