Density
4.472 g/cm³ (at 20 °C)
Discovery
Discovered by Johan Gadolin in 1789. Isolated in 1828 by Friedrich Wöhler.
Common Uses
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Used in the red phosphors of color television screens and LED lighting.
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Used to make specialized glasses that are resistant to heat and shock.
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Yttria-stabilized zirconia is used in high-temperature applications and as a gem simulant.
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Used in some superconductors and electronic components.
Interesting Facts
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Named after the Ytterby mine in Sweden, where many rare earth elements were first discovered.
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A silvery-metallic transition metal that is relatively stable in air due to the formation of a protective oxide layer.
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Often classified as a rare earth element because it occurs in the same minerals and has similar chemical properties to the lanthanides.
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Its compounds are used in various applications, including catalysts and lasers.
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