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