Yttrium
Esquema
Jerarquía
<materials by composition> > inorganic material > metal > <metal by composition or origin> > nonferrous metal
Descripción
Chemical element having symbol Y and atomic number 39. Yttrium resembles lanthanide metals very closely and is often classified as a ‘rare earth element.' Yttrium’s most important use is for making the phosphors used in television screen displays and in LEDs. Yttrium phosphors emit a clear red light when excited by electrons.
URI original del concepto
Otros términos
- Y [en]