lutetium — Lu
The chemical element lutetium is an element of type Metal lanthanides with the symbol Lu. It has an atomic mass of 174.9668 u and an electronic configuration of [Xe] 4f14 5d1 6s2.
Synthétique
Radioactif
Liquide
Gaz
3315°
8
18
32
9
2
- Atomic number
- 71
- Atomic mass
- 174.9668
- Symbol
- Lu
- Melting point
- 1656
- Boiling point
- 3315
- Density
- 9.84
- Period
- 6
- Group
- 0
- Discovery
- 1907 Urbain/ von Welsbach
- Abundance
- 0.8
- Radius
- 2.3
- Electronegativity
- 1.27
- Ionization
- 5.4259
- Isotope
- 22
- Electronic configuration
- [Xe] 4f14 5d1 6s2
- Oxidation state
- 3
- Electron
- 2,8,18,32,9,2
Minerals containing lutetium
| first name | Hardness | Density | Chemical formula |
|---|---|---|---|
| Hingganite-(Y) | — | 0.00 | BeY(SiO4)(OH) |
| Iwashiroite-(Y) | — | 7.10 | YTaO4 |
| Samarskite-(Yb) | — | 7.03 | YbNbO4 |