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by Ciro Santilli (@cirosantilli, 37)

Polonium-210 (140d)

 ... Natural science Chemistry Chemical element List of chemical elements Polonium Polonium isotope
 1 By others on same topic  0 Discussions  Updated 2025-05-26  +Created 1970-01-01  See my version
Tags: Alpha emitter
The only isotope found on Earth because it occurs as part of the uranium 238 decay chain, i.e., it is not a primordial nuclide.
Interestingly it is a bit less stable than other isotopesL such as Polonium-208 (3 y) and Polonium-209 (124 y), but those aren't in any Earthly radioactive chain so they don't show up on Earth.

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Polonium-210 by Wikipedia Bot 0  1970-01-01
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