Periodic Table Crossword

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Across
  1. 4. Group Seven
  2. 5. The element that Group Four was named after
  3. 6. Group Four
  4. 9. The number of rows in the periodic table
  5. 10. Atoms that want to have eight _____
  6. 12. Group Eight
  7. 13. The element that is abbreviated by K
  8. 14. Radioactive element with a mass number of 238
  9. 15. Proton number of three
  10. 16. Alkaline Earth Metals
Down
  1. 1. Group Three
  2. 2. Group Five
  3. 3. The element that Group Three was named after
  4. 4. The element with the smallest mass number
  5. 5. Group Six
  6. 7. Group One
  7. 8. The element that is abbreviated by Pb
  8. 9. Na abbreviates this element
  9. 11. The number of groups in the periodic table
  10. 13. The element that is abbreviated by Pt