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  • Rare-earth element - Wikipedia

    A rare-earth element (REE) or rare-earth metal (REM), 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. Scandium and yttrium are considered rare-earth elements because they tend to occur in the same ore deposits as the …

  • Small nuclear power reactors - World Nuclear Association

    There is revival of interest in small and simpler units for generating electricity from nuclear power, and for process heat. This interest in small nuclear power reactors is driven both by a desire to reduce capital costs and …