| Property | Value |
|---|---|
| Atomic number | 71 |
| Atomic weight | 174.9671 amu |
| Element family | N/A |
| Electronic configuration | 1s2 |
| Stable and very long lived isotopes | 175Lu: 97.41% |
| Previous element | Ytterbium |
| Next element | Hafnium |
| Density | 9.84 g/cm3 (STP) |
| Melting | 1663 °C |
| Boiling | 3315 °C |
| Covalent radius | 1.62 Å |
| Ionic radius | 0.848 Å |
| Metallic radius | 1.738 Å |
| First ionization potential | 5.426 eV |
| Electron affinity | 0.239 eV |
| Electronegativity | 1.27 |
| Discovery year | 1906 |
Lutetium is an element number 71 from n/a family. Its symbol is Lu. Lutetium atomic weight is 174.9671 amu. Lu stable and long lived isotopes are 175Lu: 97.41%. Lutetium electronic configuration is 1s22s22p63s23p63d104s24p64d105s25p66s25d14f14. Lutetium density is 9.84 g/cm3 (STP). Lutetium melting point is 1663 °C. Lutetium boiling point is 3315 °C. Lutetium covalent radius is 1.62 Å. Lutetium ionic radius is 0.848 Å. Lutetium covalent radius is 1.738 Å. Lutetium first ionization potential is 5.426 eV. Lutetium first ionization potential is 0.239 eV. Lutetium electronegativity by Pauling scale is 1.27. Lutetium was discovered in 1906.
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