Across
- 3. I am denser than iron
- 6. A very bad ingredient in watches
- 8. My element's name comes from Argentina
- 9. I've got 176 neutrons!!
- 11. You'll find me in a nuclear submarine
- 13. I am in your foil -- in England
- 15. I'm named for Poland
- 16. Don't fly with me in batteries
- 17. I'm quite explosive in fireworks
Down
- 1. I make up the Sun
- 2. I don't have any neutrons!
- 4. I don't know WHY I start with W
- 5. I'm found in emeralds
- 7. I am the rarest element!
- 10. Don't try to eat soup with me
- 12. I'm a little controversial, because my namesake was still alive!
- 14. I'm found in spark plugs and in meteors