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Good articleActinide has been listed as one of the Natural sciences good articles under the good article criteria. If you can improve it further, please do so. If it no longer meets these criteria, you can reassess it.
Did You Know Article milestones
DateProcessResult
July 26, 2011Good article nomineeListed
September 29, 2014Good topic candidatePromoted
February 15, 2024Good topic removal candidateDemoted
Did You Know A fact from this article appeared on Wikipedia's Main Page in the "Did you know?" column on October 29, 2010.
The text of the entry was: Did you know ... that some actinides glow because of their radioactivity (example pictured)?
Current status: Good article

Colors of ions

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See the second table in Actinide#Properties. Since the colors are the topic (not an illustration), I have made the bg white for good showing. Now it appears that three ions have no color added at all (per row the leftmmost one, starting with Ac3+). I suggest someone adds their color as bg color (which could be white). As it stands now, their colors are "undecided and unexplained". -DePiep (talk) 08:13, 10 November 2019 (UTC)[reply]

Maybe this second table could be merged into the big one above it. (Colors row can have multiple subrows). -DePiep (talk) 08:28, 10 November 2019 (UTC)[reply]
And, the big table be transposed, so that columns can be sortable for more comparing options. -DePiep (talk) 08:29, 10 November 2019 (UTC)[reply]
They are colourless. Think of plain water. Double sharp (talk) 08:35, 24 March 2021 (UTC)[reply]

Actinide vs Actinoid

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IUPAC argues that the -ide ending is reserved for a binary compound, such as chlorides or nitrides. The -oid ending means "similar to" as in humanoid or android. Therefore, I do propose to use the new official name first, with the old -ide ending second as a synonym. --Gunnar (talk) 10:18, 1 September 2020 (UTC)[reply]

I agree, but judging from Talk:Lanthanide, this seems unlikely to get consensus.
Also: the idea that actinoids are similar to Ac (which is basically a more basic and electropositive La) is kind of a joke. Anyone who believes it should compare chemistries of lanthanum and uranium. Lanthanoids are indeed similar to La. So maybe the -oid ending is not particularly right either. I don't know if this influenced anybody to avoid adopting the new -oid endings, though. Double sharp (talk) 08:34, 24 March 2021 (UTC)[reply]

GA concerns

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I am concerned that this article no longer meets the good article criteria. Some of my concerns are listed below:

  • The lead is quite long, and should probably be trimmed. There are also citations in the lead, which is not necessary per WP:LEADCITE: is all of this information in the body of the article?
  • There are uncited passages throughout the article.

Is anyone interested in fixing up this article, or should it go to WP:GAR? Z1720 (talk) 02:18, 27 October 2024 (UTC)[reply]