Periodic Table

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Across
  1. 3. number 13 on the periodic table
  2. 5. the rows in the periodic table.
  3. 6. has an atomic number of 9
  4. 8. number five on the periodic table
  5. 9. what type of element oxygen
  6. 13. what number is nitrogen on the periodic table
  7. 16. how many elements are on the periodic table
  8. 17. how many valence electrons does fluorine have?
  9. 18. number 4 on the periodic table
Down
  1. 1. number 20 on the periodic table
  2. 2. how many valence electrons does oxygen have?
  3. 3. the same number as electrons and protons
  4. 4. the columns on the periodic table
  5. 7. the abreviation for this element is "K"
  6. 10. number 8 on the periodic table
  7. 11. the groups tell you how many each column has
  8. 12. what number is chlorine on the periodic table
  9. 14. what number is hydrogen on the periodic table
  10. 15. number 18 on the periodic table
  11. 19. what type of element is aluminum