SEARCH Articles Figures Tables Lanthanide, Yttrium, and Scandium Trihalides: Preparation of Anhydrous Scandium and Yttrium Scandium, Yttrium and the Lanthanide Metals Scandium, Yttrium and the Lanthanides Scandium, Yttrium, and Lanthanide Compounds Yttrium lanthanides and Yttrium-90 and