Crossword clues for scandium
The Collaborative International Dictionary
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.
Douglas Harper's Etymology Dictionary
1879, from Modern Latin Scandia (see Scandinavia) + chemical ending -ium.
Wiktionary
n. A metallic chemical element, atomic number 21, obtained from some uranium ores; it is a transition element.
WordNet
n. a white trivalent metallic element; sometimes classified in the rare earth group; occurs in the Scandinavian mineral thortveitite [syn: Sc, atomic number 21]
Wikipedia
Scandium is a chemical element with symbol Sc and atomic number 21. A silvery-white metallic d-block element, it has historically been sometimes classified as a rare earth element, together with yttrium and the lanthanoids. It was discovered in 1879 by spectral analysis of the minerals euxenite and gadolinite from Scandinavia.
Scandium is present in most of the deposits of rare earth and uranium compounds, but it is extracted from these ores in only a few mines worldwide. Because of the low availability and the difficulties in the preparation of metallic scandium, which was first done in 1937, applications for scandium were not developed until the 1970s. The positive effects of scandium on aluminium alloys were discovered in the 1970s, and its use in such alloys remains its only major application. The global trade of scandium oxide is about 10 tonnes per year.
The properties of scandium compounds are intermediate between those of aluminium and yttrium. A diagonal relationship exists between the behavior of magnesium and scandium, just as there is between beryllium and aluminium. In the chemical compounds of the elements in group 3, the predominant oxidation state is +3.
Usage examples of "scandium".
In the early twenty-first century, scandium had almost no commercial uses, and yet because of its extreme scarcity, cost several thousand dollars a pound.
Actually, that makes sense: neutrons decaying into protons and pions would transmute some of the calcium to scandium, the oxygen to fluorine, and the carbon to nitrogen.
The humans generally find it very difficult to obtain scandium, and the analyses usually skimp badly on that.
A few pounds of molybdenum, some wire-drawing apparatus, a few ounces of scandium and special glass-blowing machinery.
The discovery of relatively abundant rare earths, particularly scandium, in certain asteroids, plus the unprecedented demand for those elements for such applications as high temperature superconductors, picoaccelerators, gamma-pumped electron cascades, and other engineered ceramic molecules, put a strong economic incentive behind the project.
The subsequent discoveries of gallium, scandium, and germanium bore out his predictions.
Made out of what was essentially layers of carbon fiber and super glue with scandium barrel liners and titanium springs and firing pins, they shot some kind of boron-epoxy round.
There were nearly a hundred of them in the Bazaar, trading in everything from scandium fuel catalyst to Kalleyni pornography, and lots more were doing business in bars of public corridors.
The ambassadors came from Scandia, from Muscovy, from Arabia, from the lands of the Greeks and the Bulgars, from Ukrainia, from Nurnberg and Catalania.
Actually, that makes sense: neutrons decaying into protons and pions would transmute some of the calcium to scandium, the oxygen to fluorine, and the carbon to nitrogen.
And the Guild didn't forbid energy weapons on Scandia, even if the Scandians did.
Here, in Scandia, and in Britain, they had their last refuge from the edicts of Rome and were determined to hang on to what remained of their influence as they competed with the other gods for the mind of the people.
They had come home to their house on Scandia Loop in Bend and were getting ready for bed when there was a knock on the door.