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	Uranium is a featured article; it (or a previous version of it) has been identified as one of the best articles produced by the Wikipedia community. Even so, if you can update or improve it, please do so.
	Uranium is part of the Actinides series, a good topic. This is identified as among the best series of articles produced by the Wikipedia community. If you can update or improve it, please do so.
	This article appeared on Wikipedia's Main Page as Today's featured article on March 19, 2007.
Article milestones Date Process Result February 21, 2007 Peer review Reviewed March 3, 2007 Featured article candidate Promoted September 29, 2014 Good topic candidate Promoted
Current status: Featured article

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Archive 1

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Are all the entries in the list of isotope halflife good? Contrast U236's entry of 2.342×10^7 y with: "Upon bombardment with slow neutrons, its uranium-235 isotope becomes a very short-lived uranium-236 isotope, which immediately divides into two smaller nuclei, releasing nuclear binding energy and more neutrons."Alexlaw65 (talk) 12:50, 7 February 2008 (UTC)[reply]

I think the "very short-lived uranium-236 isotope" is U-236 in an excited state but the half-life 2.342×10⁷ y is for U-236 at the ground state. Upon absorbing a slow neutron, U-235 will become U-236 in an excited state and immediately undergo fission 82% of the time or de-excite by gamma emission to become U-236 at the ground state the remaining 18% of the time (the numbers are from here). I'll fix the article the best I can. Warut (talk) 14:34, 7 February 2008 (UTC)[reply]

The correction is obvious: it should be "uranium-236m", but the shortest way to write it is "^236mU" or "²³⁶U_m". The article does not mention, in the case of "very short-lived uranium-236 isotope", that "uranium-236" is in an isomeric state. And that concludes this discussion. --3.14159265358pi (talk) 16:53, 3 December 2011 (UTC)[reply]

More likely ^236fU as a fission isomer. Double sharp (talk) 16:02, 29 July 2016 (UTC)[reply]

I once heard that you can carry only a specified amount of pure uranium in a room before you are caught by law. I checked the article and it has nothing on uranium and the law. If you have anything, please put it on. — Preceding unsigned comment added by Clammybells (talk • contribs) 01:24, 31 May 2011 (UTC)[reply]

• It is 15 pounds. 108.66.232.239 (talk) 00:09, 13 August 2016 (UTC)[reply]

There are now two published examples of uranium in the 2+ oxidation state, as characterized structurally (X-ray) and specatroscopically (NMR, magnetics, etc). I think it is reasonable to change the sentence "A few solid and semi-metallic compounds such as UO and US exist for the formal oxidation state uranium(II), but no simple ions are known to exist in solution for that state." to be current. The two literature examples are: 10.1021/ja406791t (JACS, W.J. Evans) and 10.1002/anie.201402050 (Angewandte, K. Meyer). — Preceding unsigned comment added by 192.12.184.7 (talk) 22:16, 16 March 2015 (UTC)[reply]

This comment has stood for just under two years. I would like to update the relevant section/sentences soon. — Preceding unsigned comment added by 12.19.178.2 (talk) 16:49, 19 December 2016 (UTC)[reply]

Ziying, Li; Zhizhang, Huang; Xiuzhen, Li; Jian, Guo; Chou, Fan (2015). "The Discovery of Natural Native Uranium and Its Significance". Acta Geologica Sinica - English Edition. 89 (5): 1561–1567. doi:10.1111/1755-6724.12564. ISSN 1000-9515. — Preceding unsigned comment added by Stone (talk • contribs) 18:57, 3 March 2016 (UTC)[reply]

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Possession of up to 15 pounds of natural uranium is legal for private individuals. Please add this to the page. 108.66.232.239 (talk) 00:08, 13 August 2016 (UTC)[reply]

Minor book keeping- it lists List of Countries by Uranium Reserves twice in the See Also section. Is there a way to unlock the page and fix that? Chilokver (talk) 03:15, 5 October 2016 (UTC)[reply]

 Done Double sharp (talk) 08:18, 5 October 2016 (UTC)[reply]

I can't find anything about this in the article, there should be an explanation of creation mechanism. Supernovas ? Rcbutcher (talk) 10:57, 2 February 2017 (UTC)[reply]

From the "Occurrence" section: "Along with all elements having atomic weights higher than that of iron, it is only naturally formed in supernovae." Primordial thorium and uranium are only produced in the r-process (rapid neutron capture), because the s-process (slow neutron capture) is too slow and cannot pass the gap of instability after bismuth. Double sharp (talk) 11:31, 2 February 2017 (UTC)[reply]

I've moved that info to separate "Origin" subsection to make it easy to find as it was buried in a section covering where it is found. Rcbutcher (talk) 02:20, 4 February 2017 (UTC)[reply]