Across
- 4. who discovered fluorine
- 5. when was aluminum discovered
- 6. dense lustrous yellow precious metal
- 7. your body does not make on its own
- 9. who discovered sulfur
- 10. Where is neon found
Down
- 1. who discovered hydrogen
- 2. who invented zinc
- 3. who discovered oxygen
- 5. what is the wait of gold
- 8. where was neon discovered