Fun Fact: Because of its short half-life, it is considered to be the rarest of all elements, even rarer than promethium: the entire planet is estimated to hold just one ounce of astatine at any given time.
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Fun Fact: Because of its short half-life, it is considered to be the rarest of all elements, even rarer than promethium: the entire planet is estimated to hold just one ounce of astatine at any given time. |