Promethium

Radioactive materials in watches

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Promethium, one of the rarest and most mysterious elements in the periodic table, has finally given up some crucial chemical secrets

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Scientists have unveiled the chemical secrets of Promethium, a rare element discovered in 1945

Promethium is extremely rare, with only about 0.5 kg naturally occurring in Earth's crust at any given time.

The highly unstable radioactive element promethium is hard to study in the lab, but chemists have now coaxed it into forming a compound in water so they can observe its bonding behaviour

Article URL: https://en.wikipedia.org/wiki/Primordial_nuclide Comments URL: https://news.ycombinator.com/item?id=33515981 Points: 1 # Comments: 0

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When element 61, also known as promethium, was first isolated by scientists at the Department of Energy's Oak Ridge National Laboratory in 1945, it completed the series of chemical elements known as lanthanides. However, aspects of the element's exact chemical nature have remained a mystery until last year, when a team of scientists from ORNL and the National Institute of Standards and Technology used a combination…

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