a chemical element, one of the rare-earth elements, used as the red phosphor in color TVs: symbol, Eu; at. no. 63
Origin of europiumModL: so named (1901) by E. A. Demarçay (1852-1904), French chemist ; from Europe + -ium
A silvery-white, soft, ductile, rare-earth element occurring in monazite and bastnaesite and used to dope glass and plastics for lasers and to absorb neutrons in research. Europium oxides provide important phosphors in cathode-ray tubes and low-energy lighting applications. Atomic number 63; atomic weight 151.96; melting point 822°C; boiling point 1,596°C; specific gravity 5.244; valence 2, 3. See Periodic Table.
Origin of europiumAfter Europe.
- a metallic chemical element (symbol Eu) with an atomic number of 63.