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662:. It is a long list of descriptions. I'd expect some differentiation; maybe distinction (subsections) by discovery/history, theories, research, importance, meaningfulness in RL/in science. Or: more of a storyline. This applies for the current section, and (more so?) for a standalone article. As it stands now, it is not inviting and after reading the question remains: 'all true but why is 229m relevant?'.
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It is reported that 230_Th is 0.02% of thorium, Its half life is given as 75,380 years. it therefore decays 1.405e10/7.538e4 times as fast as 232_Th. That is more than 186 thousand. How on earth can 230_Th be even as much as 0.02% of existing thorium? It is a great-great-granddaughter of 238_U. So
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The most common and stable isotope of thorium is Th-232, which has 90 protons and 142 neutrons, neither of which is a magic number. On the other hand, lead-208 has magic numbers for both protons and neutrons, 82 + 126 = 208, and bismuth-209 has a magic number for neutrons: 83 + 126 = 209, and it is
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The 0.02% figure is a deep-sea thing. Uranium is soluble under those conditions, but thorium is not. As such Th-230 accumulates in the sediment to measurable levels. It should really rather be listed as 0.02±0.02% as on the
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Because all the closed nuclear shells in the world will not save you from being so far from the beta stability line. That doom is governed by the weak force, not the strong force which is related to nuclear shells.
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Th and Th are potentially capable of double beta plus decay, and Th is potentially capable of double beta minus decay, although the estimated half-life should be very long.
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Th deposits generally are nearly pure 232, with no significant amounts of 230. It's uranium deposits that will give you the 230 (you can purify out the Th-230 from them).
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648:: " 'Main' because of IAR: Remarkably low-lying isomer"). This is not an absolute rule for article creation, but supportive it is. So: a Go.
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3. Th? I leave it to others to think whether its ground state isotope, Th, could be the article (strong relationship between the two?).
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consists of eight paragraphs, flatly. The paragraphs are nicely of length (1000 words together). The section has 33 different sources.
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When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.
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Here's another question: Do common thorium deposits contain the 230 isotope, or does it mainly appear in uranium deposits?
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Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.
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808:= 800.8 kJ/mol, which is in the order of the energy change in a typical chemistry reaction (for example 2Na + Cl
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to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the
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to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the
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for neutrons of 126, and thus the atomic mass number of 90 + 126 = 216, yet Th-216 is pretty darned unstable.
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If you have discovered URLs which were erroneously considered dead by the bot, you can report them with
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1. Main
Isotope. Apparently, this m-isotope has been listed as Main Isotope. (In our developing MOS
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https://web.archive.org/web/20110927225711/http://www.ne.doe.gov/pdfFiles/U233RptConMarch2001.pdf
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presumably occurs as 7.538e4/4.468e9 of 238_U, which is less than 0.000017 of uranium abundance.
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before doing mass systematic removals. This message is updated dynamically through the template
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before doing mass systematic removals. This message is updated dynamically through the template
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into a separate article. This section is large and probably enough to create its own article.
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https://web.archive.org/web/20080923135135/http://www.nndc.bnl.gov/amdc/nubase/Nubase2003.pdf
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686:: This splitting proposal has stalled for 8 months - shall we split the article or not?
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https://web.archive.org/web/20100203162843/http://ie.lbl.gov/education/parent/Th_iso.htm
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Should it be noted that Th is the lightest nuclide with observed spontaneous fission?
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https://web.archive.org/web/20110720233206/http://amdc.in2p3.fr/nubase/Nubase2003.pdf
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I think no. I don't know how to fix about 'all true but why is 229m relevant?'.
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Any theoretical explanation about Th-216 and its instability? Thorium-216 has a
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on
Knowledge (XXG). Please participate by editing this article, or visit the
812:→ 2NaCl). Does this mean that given Th, its isomer can be easily produced?
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TL;DR: could use more depth in the article body, into encyclopedic story. -
782:) should have a partial alpha decay half-life at the order of 10 years.
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for additional information. I made the following changes:
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for additional information. I made the following changes:
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http://www.ne.doe.gov/pdfFiles/U233RptConMarch2001.pdf
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Subsequent comments should be made in a new section.
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801:Energy of the isomeric transition of Th: 8.3 eV ×
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653:Isotopes of thorium#Thorium-229m
584:Isotopes of thorium#Thorium-229m
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