Symbol | Er | Atomic radius: pm | 173 | Fusion: kJ/Mole | 19.9 |
Name | Erbium | Ionic radius: pm | (+3)100 | Boiling point: °C | 2868 |
Atomic number | 68 | Electron affinity | - | Melting point: °C | 1529 |
Atomic weight | 167.3 | 1st ion potential | 6.11 | Specific Heat Cap: J/(g K) | 0.17 |
Classification | Trans metal | Natural form | Solid | Thermal Cond: W/(cm K) | 0.15 |
Configuration | [Xe]4f126s2 | Crystal structure | Hex | Electrical Cond | 0.0117 |
Oxidation states | 3 | Density | 9.07 | Abundance: mg/kg-crust | 3.5 |
Electronegativity | 1.24 | Vaporization: kJ/Mole | 293.0 | ||
Erbium was discovered in 1843 as an oxide by C.G. Mosander. | Uses - alloys, photographic filter, colorant in glasses and porcelain enamel glazes |