Definitions by Tarn

astatine 

A highly unstable radioactive element, the heaviest of the halogen series, that resembles iodine in solution. Its longest lived isotope has a mass number of 210 and has a half-life of 8.3 hours.

"Oooh, I made Asta-*BOOOOOOOOOOOOOM*"

astatine by Tarn June 12, 2005