Science Memes

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Bicurious (mander.xyz)

submitted 7 months ago* (last edited 7 months ago) by [email protected] to c/[email protected]

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[–] [email protected] 24 points 7 months ago (1 children)

Although bismuth-209 is now known to be radioactive, it has classically been considered to be a stable isotope because it has a half-life of approximately 2.01×1019 years, which is more than a billion times the age of the universe. Besides 209Bi, the most stable bismuth radioisotopes are 210mBi with a half-life of 3.04 million years, 208Bi with a half-life of 368,000 years and 207Bi, with a half-life of 32.9 years, none of which occurs in nature

God damn.

[–] [email protected] 14 points 7 months ago* (last edited 7 months ago)

Isotopes like bismuth 209 make me wonder whether all elements beyond iron might be radioactive, just with absurdly long half-lives.