Periodic Table

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Across
  1. 2. Element used in light bulbs
  2. 4. Element used in pencils
  3. 7. Symbol for Carbon
  4. 9. Element with the symbol Fe
  5. 11. Element with the symbol He
Down
  1. 1. Symbol for silver
  2. 3. Element with the symbol Na
  3. 5. Symbol for oxygen
  4. 6. Element with the symbol Au
  5. 8. Symbol for neon
  6. 10. Element with the symbol Sn