Across
- 7. It has an era named after it
- 8. One of the components of bronze
- 10. Key component in permanent magnets
- 12. Group of periodic table that do not react with any element
- 14. It's chemical symbol does not contain any of the letters in it's name. Used in cosmetics
- 15. The aurora borealis green colour is caused by this
- 17. Named after a district in Greece
- 18. It's chemical symbol if expanded contains a breed of canine
Down
- 1. Number of elements named after scientists
- 2. Used in hot thermometers
- 3. Has atomic number 118
- 4. The heaviest non reactive metal in the periodic table
- 5. It reacts with starch to turn deep blue
- 6. Was first discussed by an alchemist and was mistaken for gold because it glowed in the dark
- 9. Heaviest naturally occurring element on Earth
- 11. Second lightest noble gas
- 13. Burns apple green when exposed to flame (with HCl)
- 16. Lustrous solid brittle bluish white metal