Periodic Table

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Across
  1. 2. Is used by most living organisms in order to live.
  2. 4. Creator of this puzzle.
  3. 6. Most abundant noble gas in Earth's air.
  4. 8. Element with the highest melting point.
  5. 10. Element named after Albert Einstein.
  6. 13. Latin for Gold.
  7. 16. There are one hundred and ___elements on the Periodic Table.
  8. 18. Heaviest primordial element found in nature.
  9. 19. The only metallic element that is liquid at room temperature.
  10. 20. element that exhibits an orange-red glow when placed in an electric field.
Down
  1. 1. Elements are arranged in___.
  2. 3. ___is the symbol for iron.
  3. 4. Least abundant element on Earth.
  4. 5. Mass of an atom or a molecule.
  5. 7. Densest naturally occurring element.
  6. 9. Least reactive metal.
  7. 11. First element produced artificially.
  8. 12. Element with the highest atomic number.
  9. 14. The symbol N stands for___.
  10. 15. Combines with Oxygen to form water.
  11. 17. Sodium and___make up salt.