Discovery
Discovered by Dale R. Corson, Kenneth Ross MacKenzie, and Emilio Segrè in 1940.
Common Uses
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Limited use in medical treatments such as cancer therapy (targeted alpha-particle therapy).
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Research use due to its extreme rarity and radioactivity.
Interesting Facts
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Astatine is one of the rarest naturally occurring elements on Earth.
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Its radioactivity makes it hazardous and difficult to study.
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