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Tb |
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| Terbium | |
| Atomic no.: | 65 |
| Atom. weight: | 158.92534 |
| Density: | 8.253 |
| Class: | Rare earth metal |
| Melting point: | 1356°C |
| Boiling point: | 3230°C |
| Colour: | silvery shiny |
| Discoverer: | Carl Gustav Mosander |
| Place: | Stockholm, Sweden |
| Year: | 1843 |
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Terbium was discovered in 1843 by C.G. Mosander in Stockholm and was named after the Swedish town of Ytterby.
A lanthanide group metal, it is soft, malleable and ductile. Terbium has an abundance of 1.1 ppm in the earth's crust and is found in minerals in combination with other lanthanide group elements. It is slowly oxidized in air, the rate of the reaction being increased if terbium powder is used. Terbium reacts slowly with cold water.
Terbium is used in the semiconductor industry as a dopant. | |
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Idea, Design & Programming © by Juergen Bauer & Maria Lidia Biscayart - All rights reserved