Talk:Scandium

Scandium 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.

Scandium is part of the Group 3 elements 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.

Article milestones
Date	Process	Result
January 9, 2009	Good article nominee	Listed
August 25, 2022	Good topic candidate	Promoted

Current status: Good article

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Information Sources: Some of the text in this entry was rewritten from Los Alamos National Laboratory - Scandium. Additional text was taken directly from the Elements database 20001107 (via dict.org), Webster's Revised Unabridged Dictionary (1913) (via dict.org) and WordNet (r) 1.7 (via dict.org). Data for the table were obtained from the sources listed on the subject page and Wikipedia:WikiProject Elements but were reformatted and converted into SI units.

Classification[edit]

This article says that scandium "has been classified as a rare-earth element, together with yttrium and the lanthanides." That's inconsistent with the article on transition metals, which includes scandium. I suggest that it would be better to follow the example of the yttrium article, which classifies yttrium first and foremost as a transition metal while noting that it has also been classified as a rare-earth. Tom239 (talk) 17:31, 18 May 2023 (UTC)[reply]

There are various classifications.

As a geochemist & mineralogist, I treat Sc, Y, and Th, as ones belonging to the REE group.

The constitution of the REE group has little to do with one elements' placing or non-placing in the d or f block. It has to do with common geochemical behaviour of these elements = behaviour in the nature. Thus, in minerals, Th is almost always coexisting with the Ln, but also with Y; and the latter - very often with Sc. The more, both Sc and Ln belong to the HFSE (high-field strength elements) group.Eudialytos (talk) 23:05, 18 May 2023 (UTC)[reply]