Lutetium

Symbol

Lu

Atomic number

71

Atomic mass	174.970		Thermal conductivity	0.164
Atomic radius	2.25		Covalent radius	1.56
Density	9.84		Atomic volume	24.79
Melting point	1936		Oxidation states	3
Boiling point	3668		Stable isotopes	1
Heat of vapor.	355.9		Electronegativity	1.27
Heat of fusion	18.6		First ionization	5.43
Specific heat	0.15		Electrical conduct.	...

Electron configuration

Lutetium

As a member of the fourteen member lanthanide series, this element has few properties which distinguish it from the other members of the series. All of them along with lanthanum, yttrium, and scandium occur in very small quantities in nature. The usual source is the mineral monazite, or monazite sand, which is a mixture of phosphates containing also some thorium phosphate.

One notable thing about lutetium is that its nucleus is highly deformed, having one of the largest electric quadrupole moments of all nuclides. The quadrupole moment of the departure from spherical symmetry of the charge of the nucleus.

Lutetium Nuclear Data

One notable thing about lutetium is that its nucleus is highly deformed, with ¹⁷⁶Lu having one of the largest electric quadrupole moments of all nuclides. The quadrupole moment of the departure from spherical symmetry of the charge of the nucleus. ¹⁷⁶Lu has Q = 8 eb compared to common values for light nuclei of a few tenths at most.