Chemistry elements

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Across
  1. 1. The element which doesn't freeze.
  2. 3. An element named as a planet.
  3. 5. It's symbol is Ne.
  4. 7. The 12th element of the periodic table.
  5. 8. The rarest element on earth.
  6. 9. What metal is used in a thermometer?
  7. 11. The 8th element of the periodic table.
Down
  1. 1. The most common element.
  2. 2. The strongest metal on earth.
  3. 4. The 27th element of the periodic table.
  4. 6. It's symbol is Pt.
  5. 10. The element that can be burned the hardest.