4 definitions found From The Collaborative International Dictionary of English v.0.48 [gcide]: Scandium \Scan"di*um\, n. [NL. So called because found in Scandinavian minerals.] (Chem.) A rare metallic element of the boron group, whose existence was predicted under the provisional name {ekaboron} by means of the periodic law, and subsequently discovered by spectrum analysis in certain rare Scandinavian minerals (euxenite and gadolinite). It has not yet been isolated. Symbol Sc. Atomic weight 44. [1913 Webster] From The Collaborative International Dictionary of English v.0.48 [gcide]: Ekabor \Ek"a*bor`\ ([e^]k"[.a]*b[=o]r`), Ekaboron \Ek"a*bo"ron\ (-b[=o]"r[o^]n), n. [G., fr. Skr. [=e]ka one + G. bor, boron, E. boron.] (Chem.) The name given by Mendelejeff in accordance with the periodic law, and by prediction, to a hypothetical element then unknown, but since discovered and named {scandium}; -- so called because it was a missing analogue of the boron group. See {Scandium}. [1913 Webster] From WordNet (r) 2.0 [wn]: scandium n : a white trivalent metallic element; sometimes classified in the rare earth group; occurs in the Scandinavian mineral thortveitite [syn: {Sc}, {atomic number 21}] From Elements database 20001107 [elements]: scandium Symbol: Sc Atomic number: 21 Atomic weight: 44.956 Rare soft silvery metallic element belonging to group 3 of the periodic table. There are ten isotopes, nine of which are radioactive and have short half-lives. Predicted in 1869 by Mendeleev, isolated by Nilson in 1879.
Powered by Blog Dictionary [BlogDict]
Kindly supported by
Vaffle Invitation Code
Get a Freelance Job - Outsource Your Projects | Threadless Coupon
All rights
reserved. (2008-2024)