Talk:List of elements by stability of isotopes

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[edit] Is this data up to date?

I was under the impression that some of the elelemnts listed here as stable do in fact exhibit decay. Bismuth is actually unstable (though for most practical purposes can be considered stable).

"Bismuth was found to be hypothetically unstable in 2003, with an α-emission half-life of 1.9 × 1019 years for Bi-209."

--ManInStone 08:19, 2 August 2007 (UTC)