Across
- 5. named after the Greek words anti and monos
- 6. does not exist in nature
- 11. named after the Greek words 'prasios didymos'
- 12. forty-sixth element of the periodic table
- 13. found in some household products
- 15. 8th most abundant element in the universe
- 17. last natural rare earth element that was discovered
- 18. how french people would say sink
- 19. named after Lise Meitner
Down
- 1. produced industrially by cryogenically distilling air
- 2. named after mythical, death-dealing goblins.
- 3. can absorb neutrons
- 4. used in alloys with stainless steel
- 7. named for physicist Niels Bohr
- 8. rarest element on Earth
- 9. 5th most abundant element in the earth's crust
- 10. commonly put in ballons
- 11. banana
- 14. highly radioactive,glows with a visible blue light
- 16. lonely