Talk:Scandium

Classification
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)


 * 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)


 * Perhaps the text should be updated to say this? 67.198.37.16 (talk) 02:47, 17 May 2024 (UTC)