Compare chemical elements
All chemical elements
|
Erbium
✕
|
| Symbol |
Er |
| Atomic number |
68 |
| Chemical property |
Lanthanide |
| Origin o the name |
Ytterby, Sweden |
| Period |
6 |
| Atomic weight (u) |
167.259 |
| Atomic weight uncertainty (u) |
0.003 |
| Density (g/cm³) |
9.066 |
| Melting point (K) |
1802 |
| Boiling point (K) |
3141 |
| Heat capacity (J/(g·K)) |
0.168 |
| Electro-negativity |
1.24 |
| Abundance in earth's crust (mg/kg) |
3.5 |