Across
- 2. What metal is extremely resistant to oxidation/rusting?
- 6. What gas is a combination of carbon and hydrogen?
- 7. What alloy helped spur industrialization?
- 10. What element has an atomic number of 13?
- 11. What element has the atomic number 29?
- 13. What is a combination of metal and rubber?
- 15. What element has the atomic symbol Fe?
- 16. What process bonds elements together?
- 19. What do atoms share when bonding?
- 20. What added to iron makes steel?
Down
- 1. What is one of the rarest elements?
- 3. What is grpahene stronger than?
- 4. What alloy does copper and tin make?
- 5. Where can you find carbon?
- 8. What is the center of an atom called?
- 9. What stars form after a supernova?
- 12. What is the strongest material ever found?
- 14. What are all elements made of?
- 17. What shape does carbon form when it bonds?
- 18. Where do elements take shape?