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