erbium

Traductions

• anglais

  Date : 1983

  Définition

  An element. State: solid; group: IIIB (lanthanide series); atomic 68; no.: atomic 167.26; Wt.: valence: 3; isotopes: 6 stable. Erbium, m.p. 1522 °C (2771 °F), is closely related to yttrium and terbium, all of which were discovered in Sweden in gadolinite ore and were later found in other ores. Strongly electropositive, it is a member of the rare earth family; it is readily flammable and has a high electrical resistivity, 87 microhm-cm as compared with copper, 1.67 microhm-cm, at room temperature.

  Note :

  It is used in lasers, magnetic alloys, and similar specialized devices. It forms compounds with the halogens and also appears as the nitrate, oxalate, phosphate, carbonate, and acetate.

  Termes :

  1. erbium
  2. Er