Thulium — Tm
The chemical element Thulium is an element of type Metal lanthanides with the symbol Tm. It has an atomic mass of 168.93422 u and an electronic configuration of [Xe] 4f13 6s2.
Synthétique
Radioactif
Liquide
Gaz
1727°
3
8
18
31
8
2
- Atomic number
- 69
- Atomic mass
- 168.93422
- Symbol
- Tm
- Melting point
- 1545
- Boiling point
- 1727
- Density
- 9.321
- Period
- 6
- Group
- 0
- Discovery
- 1879 Cleve
- Abundance
- 0.52
- Radius
- 2.4
- Electronegativity
- 1.25
- Ionization
- 6.1843
- Isotope
- 18
- Electronic configuration
- [Xe] 4f13 6s2
- Oxidation state
- 2,3
- Electron
- 2,8,18,31,8,2
Minerals containing Thulium
| first name | Hardness | Density | Chemical formula |
|---|---|---|---|
| Hingganite-(Y) | — | 0.00 | BeY(SiO4)(OH) |
| Iwashiroite-(Y) | — | 7.10 | YTaO4 |
| Samarskite-(Yb) | — | 7.03 | YbNbO4 |
| Yakovenchukite-(Y) | — | 2.83 | K3NaCaY2Si12O30·4H2O |