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What is 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 - meme gifAstatine - video |
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