Lutetium Properties, Molecular Formula, Applications - WorldOfChemicals

Lutetium Properties




Lutetium is one of the elements that traditionally were included in the classification "rare earths". One of its radioactive isotopes is used in nuclear technology to determine the age of meteorites. Lutetium usually occurs in association with the element yttrium and is sometimes used in metal alloys and as a catalyst in various chemical reactions.

Chemical Properties

Appearance Silvery White Solid
Atomic Number 71
Atomic Weight 174.967 g/mol
Block d
Boiling Point 3402 °C
CAS Number 7439-94-3
Class 4.1
Crystal Structure Hexagonal
Density 9.84 g/cm3
EINECS Number 231-103-0
Electron Configuration 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s2 4d10 5p6 4f145d16s2
Group 3
Ionization Energy 523.5 KJ/mol
Melting Point 1652 °C
Oxidation State 3
PG 3
Period 6
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