Across
- 3. Ether Vintage anesthetic (10 letters)
- 4. Dioxide Breath you exhale (13 letters)
- 8. What you breathe (7 letters)
- 9. Acid Vinegar's key ingredient (10 letters)
- 10. Brilliant physicist's element (11 letters)
- 11. Sparkly gem mineral's base element (10 letters)
- 14. Nuclear physicist's tribute element (13 letters)
Down
- 1. Acid Tannin-related chemical compound (10 letters)
- 2. Superhero's home planet's namesake gas (8 letters)
- 5. Named for a continent, used in smoke detectors (10 letters)
- 6. Coin metal with a shine (6 letters)
- 7. Rare earth element named after Swedish village (8 letters)
- 12. Heavy metal used in old pipes (4 letters)
- 13. Canned food's metal (3 letters)