Across
- 3. bromine used to reduced...emmision
- 5. reddish brown liquid
- 7. astine-211 is utilized in the process of
- 10. french chemist who discovered iodine
- 11. yellow-green,gas
- 12. needed for brain development
- 13. known as 'salt former'
- 14. rarest element
Down
- 1. compound in chlorine
- 2. iodine is used in
- 4. bromine...easily at room temperature
- 6. astatine (latin)
- 8. over a hundred years ago, chlorine was used to... drinking water
- 9. the most electronegative elements
- 11. were used in as refrigerants in air conditioning units