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Holmium
Holmium

Cerium
Cerium



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Cerium

Facts About Holmium and Cerium

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Abundance In Universe

Abundance In Sun

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Abundance In Earth's Crust

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Abundance In Humans

 
  • Holmium metal is very soft and malleable.
  • Holmium metal is well known for its corrosion resistivity.
Found in Minerals, Mining, Ores of Minerals
Marc Delafontaine
In 1878
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  • Cerium is a rare earth metal but still it is not rare at all.
  • It’s non-toxic compound Cerium sulfide has a rich red color and it is used as a pigment.
  • Cerium metal is also used in Flat screen TVs, light bulb, floodlights, etc.
Found in Minerals, Mining, Ores of Minerals
Martin Heinrich Klaproth, Jöns Jakob Berzelius, Wilhelm Hisinger
In 1803
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