Sjældne jordarters grundstoffer omfatter lanthan (La), cerium (Ce), praseodym (Pr), neodym (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), scandium (Sc) og yttrium (Y). Eng...
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