Yttrium
Yttrium
Yttrium (pronounced /ˈɪtriəm/) is a chemical element with the symbol Y and atomic number 39. It is a silvery-metallic transition metal chemically similar to the lanthanides and has often been classified as a "rare-earth element".
Etymology
The element Yttrium is named after the village of Ytterby, Sweden, where it was first discovered. The name "Yttrium" was officially adopted by the International Union of Pure and Applied Chemistry (IUPAC) in 1953.
Properties
Yttrium is a soft, silver-metallic, lustrous and highly crystalline transition metal. As a rare earth element, Yttrium is almost always found in combination with the lanthanide elements in rare earth minerals, and is never found in nature as a free element.
Uses
Yttrium is used in the production of phosphors, particularly in televisions and computer monitors. It is also used in the production of superconductors and microwave filters.
Health Effects
Exposure to Yttrium compounds can cause lung disease in humans. However, the pure element is considered relatively safe to handle.
Related Terms
External links
- Medical encyclopedia article on Yttrium
- Wikipedia's article - Yttrium
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