Across
- 5. Used in alloys and as a supplement
- 8. Basis of organic chemistry
- 9. Highly reactive halogen gas
- 10. Lightest metal, used in batteries
- 13. Found in bones and teeth
- 15. Used in galvanizing and dietary supplements
- 17. Important for nerve function
- 20. Disinfectant and used in PVC
- 21. Found in borax and used in ceramics
- 23. Used in steel production
- 24. Gives stainless steel its corrosion resistance
- 25. Transition metal used in alloys
- 28. Used in neon signs for its bright glow
- 29. Basis of semiconductor technology
- 30. Traces found in steel production
Down
- 1. Essential for respiration
- 2. Most abundant element in the universe
- 3. Metal used in aerospace applications
- 4. Element with a distinct smell, found in matches
- 6. Used in batteries and alloys
- 7. Essential for body functions, found in salt
- 11. Used in balloons for lifting
- 12. Essential for life, found in DNA
- 14. Inert gas used in lightbulbs
- 16. Strong, lightweight metal used in aerospace
- 18. Lightweight metal used in construction
- 19. Essential for hemoglobin in blood
- 22. Used in coins and stainless steel
- 26. Conductive metal used in wiring
- 27. Makes up the majority of Earth's atmosphere