The most reactive member of the lanthanide group of elements. Europium is a ductile silvery metal which reacts rapidly with air and water. As a result of its reactive nature, the metal has limited applications, but some is used in the manufacture of thin-film superconductor alloys. Europium is also used as control rod material in nuclear reactors due to its ability to absorb neutrons.


E.A. Demarc¸ay in 1901 in Paris, France.

2.1 ppm in the Earth’s crust.

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Atomic number 63 Clip
Atomic / Molecular Weight 151.96 gmol-1Clip
Density 5248 kgm-3Clip
Crystal Structure bcc Clip
Lattice constant 458 fmClip
Melting Point 1103 KClip
Boiling Point 1703 KClip
Specific heat capacity 138 Jkg-1K-1Clip
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See also: Periodic Table.

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Subjects: Chemistry