SEARCH Articles Figures Tables Lanthanide, Yttrium, and Scandium Lanthanide, Yttrium, and Scandium Trihalides: Preparation of Anhydrous Scandium, Yttrium and the Lanthanide Metals Scandium, Yttrium and the Lanthanides Scandium, Yttrium, Lanthanum and Actinium Scandium, Yttrium, and Lanthanide Compounds Trichlorides of Rare Earth Elements, Yttrium, and Scandium Yttrium-90 and