Bromine

**Isotope**

Br-76 16.0 hours Br-77 .4 days Br-79 Stable Br-80 17.7 minutes Br-80m 4.42 hours Br-81 Stable Br-82 1.5 days Br-83 2.4 hours Br-84 31.8 minutes Br-85 2.9 minutes
 * Half Life**

Discoverers: Antoine J. Balard and Carl J. Lowig in 1826 in Arkansas and Michigan Originally it was used as additive in leaded gasoline. Bromine is very poisonous and has been banned from agricultural use because it may cause cancer. Bromine is a dark reddish liquid.