Sasha Ripley's Extra Credit Crossword Puzzle

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