| name | Erbium |
| latin | Erbium |
| french | Erbium |
| german | Erbium |
| symbol | Er |
| proton number | 68 |
| atomic weight | 167.26 |
| Pauling electronegativity | 1.24 |
| electronic configuration | [Xe] 4f125d06s2 1s22s22p63s23p63d104s24p64d105s25p64f125d06s2 |
| melting point | 1770 K, 1497°C, 2726°F |
| boiling point | 3141 K, 2868°C, 5194°F |
| group | - |
| period | 6 |
| state (by 20°C) | solid |
| oxidation states | +3 |
| Year of discovery | Discoverer |
| 1842 | Carl G. Mosander |