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The rare-earth elements (REE), also called the rare-earth metals or rare earths or, in context, rare-earth oxides, and sometimes the lanthanides (although scandium and yttrium, which do not belong to this series, are usually included as rare earths), are a set of 17 nearly indistinguishable lustrous silvery-white soft heavy metals.
Terra-rara. Nota: Para outros significados de a teoria astronómica, veja Hipótese da Terra rara. Minério de terras raras com uma moeda para comparação de tamanho.
Rare Earth is an American rock band from Detroit, Michigan. According to Louder, "Rare Earth's music straddles genres and defies categorisation, slipping seamlessly between the two seemingly disparate worlds of classic rock and R&B." The band was signed to Motown's subsidiary label Rare Earth.
The Journal of Rare Earths publishes original research and review articles on various aspects of rare earth elements (RE). It covers topics such as RE chemistry, physics, materials, applications, geology, and more.
21 de abr. de 2024 · Learn about the 16 rare-earth elements, their discovery, history, and applications in various technologies. Find out why they are not so rare and where they are produced and refined.
Rare Earth Elements (REE) are becoming increasingly important in electronic devices used in the defense, alternative energy, and communications industries. Minable deposits of REEs are found in only a few locations.
1 de jul. de 2019 · Rare-earth elements (hereinafter referred to as REE) are a group of seventeen chemical elements in the periodic table, in particular the fifteen lanthanides as well as yttrium and scandium as defined by the International Union of Pure and Applied Chemistry (IUPAC).
