Overview |
Name | Lutetium |
Symbol | Lu |
Atomic Number | 71 |
Atomic Weight | 174.967 |
Density | 9.841 g/cm3 |
Melting Point | 1663 °C |
Boiling Point | 3402 °C |
Thermal properties |
Phase | Solid |
Melting Point | 1663 °C |
Boiling Point | 3402 °C |
Absolute Melting Point | 1936 K |
Absolute Boiling Point | 3675 K |
Heat of Fusion | 22 kJ/mol |
Heat of Vaporization | 415 kJ/mol |
Heat of Combustion | N/A |
Specific Heat | 154 J/(kg K)[note] |
Thermal Conductivity | 16 W/(m K) |
Thermal Expansion | 9.9×10-6 K-1 |
Bulk physical properties |
Density | 9.841 g/cm3 |
Density (Liquid) | 9.3 g/cm3 |
Molar Volume | 0.000017779 |
Brinell Hardness | 893 MPa |
Vickers Hardness | 1160 MPa |
Bulk Modulus | 48 GPa |
Shear Modulus | 27 GPa |
Young Modulus | 69 GPa |
Poisson Ratio | 0.26 |
Thermal Conductivity | 16 W/(m K) |
Thermal Expansion | 9.9×10-6 K-1 |
Reactivity |
Valence | 3 |
Electronegativity | 1.27 |
ElectronAffinity | 50 kJ/mol |
Ionization Energies | 523.5, 1340, 2022.3, 4370, 6445 kJ/mol |
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Health and Safety |
Autoignition Point | N/A |
Flashpoint | N/A |
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Classifications |
Alternate Names | None |
Nams of Allotropes | None |
Block | d |
Group | 3 |
Period | 6 |
Electron Configuration | [Xe]4f145d16s2 |
Color | Silver |
Discovery | 1907 in France and Germany |
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Gas phase | N/A |
CAS Number | CAS7439-94-3 |
Electrical properties |
Electrical Type | Conductor |
Electrical Conductivity | 1.8×106 S/m |
Resistivity | 5.6×10-7 m Ω |
Superconducting Point | 0.1 |
Magnetic properties |
Magnetic Type | N/A |
Curie Point | N/A |
Mass Magnetic Susceptibility | 1.2×10-9 |
Molar Magnetic Susceptibility | 2.1×10-10 |
Volume Magnetic Susceptibility | 0.0000118 |
Abundances |
% in Universe | 1×10-8% |
% in Sun | 1×10-7% |
% in Meteorites | 2.9×10-6% |
% in Earth's Crust | 0.000056% |
% in Oceans | 1.5×10-11% |
% in Humans | N/A |
Atomic dimensions and structure |
Atomic Radius | 217 pm |
Covalent Radius | 160 pm |
Van der Waals Radius | N/A |
Crystal Structure | Simple Hexagonal |
Lattice Angles | |
Lattice Constants | 350.31, 350.31, 555.09 pm |
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Space Group Name | P63/mmc |
Space Group Number | 194 |
Nuclear Properties |
Half-Life | Stable |
Lifetime | Stable |
Stable Isotopes | |
Isotopic Abundances | |
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