Astatine (At) Fun Facts
"The Ghost, the rarest hero on Earth, so unstable that it disappears almost as soon as it appears."
The true essence of Astatine (At) on the molecular frontier.
Astatine is a highly radioactive halogen.
Astatine has no everyday connection due to its extreme rarity.
Astatine is the rarest naturally occurring element � less than a gram exists on Earth at any time.
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Did You Know?
It is the rarest naturally occurring element in the Earth's crust. It is estimated that less than one gram of astatine exists on the entire planet at any given moment.
Its name comes from the Greek word 'astatos', meaning 'unstable', which is appropriate as all of its isotopes are highly radioactive.
It is a halogen, and its properties are predicted to be similar to iodine, but it is so radioactive that it's difficult to study.
If enough could be gathered, it would likely appear as a black or dark metallic solid.
Scientists are studying its radioactive isotopes for potential use in targeted alpha-particle therapy to treat cancer.