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substances (en) > Pierwiastki > Metal (surowiec) > Pierwiastki ziem rzadkich

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创建: 2006-12-19T00:00:00Z

skos:notation: 24889

Pierwiastki ziem rzadkich  

定义

  • A rare-earth element or rare-earth metal, as defined by IUPAC is one of a set of seventeen chemical elements in the periodic table, specifically the fifteen lanthanides, as well as scandium and yttrium.

    来源: https://en.wikipedia.org/wiki/Rare-earth_element

    创建: 8/14/20

    (en)

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http://aims.fao.org/aos/agrovoc/c_24889

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