According to the classification, rare-earth metals (REM) include lanthanum (z = 57), lanthanides (elements from cerium to lutetium, z = 58/71), as well as scandium (z = 21) and yttrium (z = 39). REM—elements of the third group of the Periodic system of elements.
CITATION STYLE
Gasik, M., Dashevskii, V., & Bizhanov, A. (2020). Ferroalloys with Rare-Earth Metals. In Topics in Mining, Metallurgy and Materials Engineering (pp. 297–306). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-3-030-57502-1_17
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