Dec 23, 2022 · in 1939, jean perrin discovered the element francium no. 87, and the name of this element is also named after him. Francium is not abundant on earth, and it is constantly. Dec 25, 2020 · if you were to somehow amass a gram of francium the cost is estimated to be around $1 billion. Named for its discovery within a university of california lab in 1950,.
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