Periodic Table

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Across
  1. 1. Used to make colorful lights
  2. 4. Diamond in the rough
  3. 5. You can't live without it
  4. 7. under Oxygen
  5. 8. Over Barium
Down
  1. 2. under Radon
  2. 3. 84th number on periodic table
  3. 6. 19th on the periodic table