Sasha Ripley's Extra Credit Crossword Puzzle

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Across
  1. 2. Liquid-like metal that is a liquid at room temp.
  2. 4. Used to make signs with a ____ light.
  3. 5. First metal used 6,000 years ago.
  4. 6. Can be drawn into wires.
  5. 7. Sixth element in the periodic table.
  6. 8. Can be hammered or rolled into sheets.
  7. 9. Eighth element in the periodic table.
  8. 12. First element in group 15.
  9. 14. Element used to prevent tooth decay.
  10. 15. First element on the periodic table.
  11. 17. Metal used to create white colors in fireworks.
Down
  1. 1. Used to make pennies.
  2. 2. Last name of the creator of the periodic table.
  3. 3. First element in group 13.
  4. 7. Element named after state that starts with C.
  5. 10. Element that is used in U.S. 5 cent coins.
  6. 11. Used to create photo-copies.
  7. 13. Cadmium,Mercury and _____ make up group 12.
  8. 16. Last metal in group and once used to treat cancer.
  9. 18. Symbol of gold.