Thulium (Tm)
Rare Earth Metals | Atomic Number: 69
Basic Properties
Tm
69
168.93422 g/mol
| Element Category | Rare Earth Metals |
|---|---|
| Atomic Number | 69 |
| Atomic Weight | 168.93422 g/mol |
Crystal Structure Visualization
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Description
The rarest naturally occurring rare earth, used in portable X-ray devices and laser applications
| Density | 9.32 g/cm³ |
|---|
| Tensile Strength | N/A |
|---|---|
| Hardness | N/A |
| Melting Point | 1545°C |
|---|---|
| Boiling Point | 1950°C |
| No electrical properties data available |
| Corrosion Resistance | Good |
|---|
Applications
Used in portable X-ray devices and lasers.
Production Methods
Extracted from monazite.
History
Discovered in 1879.