Lutetium

Lutetium is the hardest, densest and one of the rarest of the lanthanide group of elements. It is found in some of the less common minerals (e.g. gadolinite and xenotime) and is difficult to isolate. Applications of lutetium tend to be limited to research only.


Symbol
Lu

Discovered
1907 by G. Urbain in Paris, France, and, independently, by C. James at the University of New Hampshire, USA.

Abundance
0.51 ppm in the earth’s crust.

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Atomic number 71 Clip
Atomic / Molecular Weight 174.967 gmol-1Clip
Density 9842 kgm-3Clip
Lattice constant 351 fmClip
Melting Point 1973 KClip
Boiling Point 3637 KClip
Specific heat capacity 155 Jkg-1K-1Clip
Thermal conductivity 17 Wm-1K-1Clip
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See also: Lutetium Aluminium Garnet, Lutetium III Chloride, Lutetium III Oxide, Lutetium Tantalate, Periodic Table.

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Subjects: Chemistry