~~~Madison Spaulding~~~CHAPTER 9 CROSSWORD~~~

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Across
  1. 1. Fluorine, chlorine, Iodine
  2. 3. Carbon, Silicon
  3. 5. Oxygen, Sulfur, Selenium
  4. 7. Boron, Aluminum
  5. 8. Indicates # of energy levels
  6. 9. creator of the periodic table
  7. 10. Helium, Neon, Argon, Krypton, XENON
  8. 11. Indicates valance electrons
Down
  1. 2. Nitrogen, Phosphorous, Bismuth
  2. 4. Lithium, Hydrogen
  3. 6. Calcium, Magnesium