INORGANIC CHEMISTRY A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site scandium (Sc) Scandium. Image copyright: smart-elements.com A silvery-white, metallic rare earth element and transition element found in group IIIB of the periodic table. Scandium is widely distributed in low concentrations, and is extracted from thortveitite or as a by-product of uranium extraction. Scandium forms trivalent ionic compounds and stable ligand complexes. The refractory scandium oxide (Sc2O3) is used in ceramics and as a catalyst; dilute scandium sulfate solution is used to improve germination of plant seeds. atomic number 21 relative atomic mass 44.956 relative density 2.989 melting point 1,541°C (2,806°F) boiling point 2,836°C (5,137°F) Related category    • INORGANIC CHEMISTRY Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP