A group of elements that include SCANDIUM; YTTRIUM; and the LANTHANOID SERIES ELEMENTS.
Historically, the rare earth metals got their name from the fact that they were never
found in their pure elemental form, but as an oxide. In addition, they were very difficult
to purify. They are not truly rare and comprise about 25% of the metals in the earth's
crust
Note générale sur le champ d'application :
general or unspecified; prefer specifics
Point d'accès autorisé parallèle
Metals, Rare Earth
Identifiants externes
Identifiant MeSH : mesD008674
Utilisation dans FMeSH
Qualificatifs autorisés : IP / IM / PK / TU / AG / BL / CF / CS / CH / UR / RE / HI
/ AN / CL / EC / PD / ST / AD / AI / SD / PO / AE / TO / ME76; was NON MESH before 1976
Informations sur la notice
Identifiant de la notice : 040739155
RCR créateur de la notice : 0001
Date de création : 23-09-1998
RCR dernier modificateur de la notice : 4994
Date de dernière modification : 26-11-2024 à 13 h 34