What does rare earth element mean?
Definitions for rare earth element
rare earth el·e·ment
This dictionary definitions page includes all the possible meanings, example usage and translations of the word rare earth element.
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Wiktionary
rare earth elementnoun
Any of a group of seventeen soft, lustrous, sometimes magnetic metals that form trivalent salts; they include the lanthanides plus yttrium, scandium, thorium and sometimes zirconium.
Wikidata
Rare earth element
As defined by IUPAC, rare earth elements or rare earth metals are a set of seventeen chemical elements in the periodic table, specifically the fifteen lanthanides plus scandium and yttrium. Scandium and yttrium are considered rare earth elements since they tend to occur in the same ore deposits as the lanthanides and exhibit similar chemical properties. Despite their name, rare earth elements are relatively plentiful in the Earth's crust, with cerium being the 25th most abundant element at 68 parts per million. However, because of their geochemical properties, rare earth elements are typically dispersed and not often found concentrated as rare earth minerals in economically exploitable ore deposits. It was the very scarcity of these minerals that led to the term "rare earth". The first such mineral discovered was gadolinite, a compound of cerium, yttrium, iron, silicon and other elements. This mineral was extracted from a mine in the village of Ytterby in Sweden; several of the rare earth elements bear names derived from this location.
Numerology
Chaldean Numerology
The numerical value of rare earth element in Chaldean Numerology is: 4
Pythagorean Numerology
The numerical value of rare earth element in Pythagorean Numerology is: 6
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"rare earth element." Definitions.net. STANDS4 LLC, 2024. Web. 6 May 2024. <https://www.definitions.net/definition/rare+earth+element>.
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