Talk:Plutonium

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Plutonium 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.

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Date	Process	Result
March 5, 2007	Good article nominee	Not listed
December 31, 2008	Featured article candidate	Promoted
January 11, 2009	Peer review	Reviewed
September 29, 2014	Good topic candidate	Promoted
February 19, 2015	Featured article review	Kept
February 15, 2024	Good topic removal candidate	Demoted
Facts from this article were featured on Wikipedia's Main Page in the "On this day..." column on February 23, 2010, February 23, 2011, February 23, 2016, February 23, 2021, February 23, 2022, and February 23, 2023.
Current status: Featured article

Semi-protected edit request on 13 November 2024

Latest comment: 1 year ago2 comments2 people in discussion

This edit request has been answered. Set the |answered= parameter to no to reactivate your request.

Add Morris L. Perlman to the Discovery list. On this page (https://en.wikipedia.org/wiki/Discovery_of_chemical_elements), he is listed in the notes as having co-discovered it with Glenn Seaborg but he's not listed in the Discovers column of that page or the Discovery list this page. Gperlman (talk) 20:13, 13 November 2024 (UTC)Reply

Not done: Seaborg and Perlman found plutonium in nature in 1942, but it was synthesized in 1941, which I suspect is why Perlman isn't generally listed as a discoverer. PianoDan (talk) 17:03, 15 November 2024 (UTC)Reply

empirical atomic radius

Latest comment: 4 months ago3 comments2 people in discussion

Plutonium's empirical atomic radius is often listed as 175 pm, but on this article, it is 159 pm. Which is strange, since I swear it was previously 158 pm. Where are the measurements coming from? Why are there never sources linked to empirical atomic radii? GracefulFern3145 (talk) 19:00, 6 March 2026 (UTC)Reply

If you click "references" at the bottom of the infobox, you get to atomic radii of the elements (data page), where the values are sourced. Double sharp (talk) 02:27, 7 March 2026 (UTC)Reply

The empirical atomic radius listed for plutonium on the article is 175 pm, so where is 158/159 pm coming from? Also, the source for that claim is from 1964. Aren't old sources not recommended? It's probably the only one of its kind, but it is still from 1964. GracefulFern3145 (talk) 15:49, 10 March 2026 (UTC)Reply

Change oxidation states in infobox

Latest comment: 2 months ago1 comment1 person in discussion

I propose the common oxidation states in the infobox be changed to +3, +4, +5, and +6. Please read the discussion here.

UnbihexiumFan (talk | contribs) 18:20, 27 May 2026 (UTC)Reply

This page was redesigned at the edge.

A page that knows where it met you.

Talk:Plutonium

Semi-protected edit request on 13 November 2024

empirical atomic radius

Change oxidation states in infobox