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PERIODIC TABLE
Lutetium
Atomic No. 71
Lu
Lutetium
About Lutetium
Lutetium is a dense lanthanide with atomic number 71 whose compounds predominantly contain lutetium in the +3 oxidation state. Cerium activated lutetium oxyorthosilicate and lutetium yttrium oxyorthosilicate are scintillators used in radiation detection and medical imaging. These dense crystals convert absorbed radiation into light, making them useful detector materials rather than structural metals.
Properties
- Atomic Number
- 71
- Atomic Symbol
- Lu
- Atomic Mass
- 174.967
- CAS No.
- 7439-94-3
- Density
- 9.841 g/cm³
- Series
- lanthanoid
- Melting Point
- 1,663°C
- Boiling Point
- 3,402°C
- Thermal Conductivity
- 0.16 W/cm °C
- Heat of Fusion
- 22 kJ/mol
- Heat of Vaporization
- 415 kJ/mol
- Electronegativity
- 1.27 pauling
- Crystal Structure
- Hexagonal
- Electrical Conductivity
- 1.8×106 S/m
Lutetium Products
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