Talk:Isotopes of americium

Accuracy?
This table was introduced by an IP address in the first edit of the americium-141 page, https://en.wikipedia.org/w/index.php?title=Americium-241&diff=284520972&oldid=143366139

The validity or meaning was questioned on the talk page Talk:Americium-241. (Note: merging was done without placing notices or linking to the old talk pages, making it hard to trace edits.) Where does the beta decay come from?? I was looking for info on 241Am decay, but the Americium page seems to give better info. Ssscienccce (talk) 18:12, 13 July 2013 (UTC)

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Am242m section
Whoever wrote this section does not have a good grasp of fission. All fissile materials can (and sometimes are) made into thin films as part of a fuel element. The key bit the author seems to be missing is that THIS example is based on an infinite reactor, not a single element, which is how other fuels and fuel elements are evaluated. This is also for the thermal (i.e. moderated) critical mass, which is different from the bare sphere mass. Comparing this critical mass with the generally given Pu239 figure is not appropriate. Kylesenior (talk) 12:17, 12 January 2021 (UTC)

Figure "Actinides and fission products by half-life"
This figure includes Ra-226 among the actinides which is not correct. It forms by actinide decay but is not an actinide. Will it form in significant amounts in spent fuel? It might be significant given the large amount of U-238 but given its half-life it will still be far from equilibrum.150.227.15.253 (talk) 14:18, 19 August 2021 (UTC)
 * The figure should have a footnote explaining that radium is added because of its relatively long half-life. 226Ra has a longer half-life than any Ac isotope and a comparable half-life to various isotopes of Th, Am, Cm, and Cf, and while the absolute quantity of 226Ra is still much less than 238U, it does exist in secular equilibrium in any U sample. ComplexRational (talk) 14:49, 19 August 2021 (UTC)

234Am: Spin 0−?
That looks impossible as 234Am as an odd-odd nuclide, but I'm not sure. 129.104.241.214 (talk) 17:01, 6 March 2024 (UTC)


 * Ah, I found that 16B, 22N, 16F, 50K, 90Rb, 92Rb, 96Y, 98Y, 116Ag, 134Sb, 144Pr, ... also have spin 0−. 129.104.241.214 (talk) 03:48, 10 March 2024 (UTC)

I think the data for 223Am is fake
223Am has 128 neutrons, which should make it have a half-live on the order of nanoseconds like the other N=128 isotones (e.g. 212Po, 216Ra, 219Pa), rather than the 10 milliseconds given on the page. Also, the article does not cite any source about 223Am, and it also seems suspicious that 223Am would have been discovered before anything from 224-228. This leads me to believe that 223Am has never been discovered, and all info about it should be removed from this article. 24.115.255.37 (talk) 23:54, 18 May 2024 (UTC)


 * I might add that a source used to be listed for 223Am but was removed in this revision. Anyway, my point still stands that the data for 223Am is most likely fake. 24.115.255.37 (talk) 00:02, 19 May 2024 (UTC)
 * I found that at least one study casts doubt on these observations and I will add it to the article. Definitely anomalous data, though I also suppose it's not impossible for a relatively long-lived isomer to exist analogous to 212mPo. Complex / Rational  00:57, 19 May 2024 (UTC)
 * That makes sense. And thanks for adding that note. 24.115.255.37 (talk) 02:10, 19 May 2024 (UTC)