scandium

Traductions

• anglais

  Date : 1983

  Définition

  An element. State: Solid; Group: IIIB; Atomic No.: 21; Atomic WT.: 44.9559; Valence: 3. Scandium, m.p. 1539 °C (2802 °F), is classed as a rare metal and is obtained i very small quantities from the ores of other metals, through there is one scarce ore in which it is present to about 35%.

  Note :

  So little is available that the metal has been used chiefly for research and has no significant applications in industry. It is electropositive in nature but forms only a few compounds, e.g., the fluoride and the oxide.

  Termes :

  1. scandium
  2. Sc

  [Sc] Symbol for scandium derived from an old name for sweden, the country of its discovery (Scandinavia).