Erbium
Erbium General
Name:Erbium | Symbol:Er |
Type:Rare Earth, Lanthanides | Atomic weight:167.26 |
Density @ 293 K:9.05 g/cm3 | Atomic volume:18.4 cm3/mol |
Discovered:
1843 |
Erbium States
State (s, l, g):solid | |
Melting point:1803 K (1530 °C) | Boiling point:3133 K (2860 °C) |
Erbium Energies
Specific heat capacity:0.17 J/gK | Heat of atomization:317 kJ/mole atoms |
Heat of fusion:19.90 kJ/mol | Heat of vaporization :261.0 kJ/mol |
1st ionization energy:588.7 kJ/mole | 2nd ionization energy:1151 kJ/mole |
3rd ionization energy:2194 kJ/mole | Electron affinity:50 kJ/mole |
Erbium Oxidation & Electrons
Shells:2,8,18,30,8,2 | Electron configuration:[Xe] 4f12 6s2 |
Minimum oxidation number:0 | Maximum oxidation number:3 |
Min. common oxidation no.:0 | Max. common oxidation no.:3 |
Electronegativity (Pauling Scale):1.24 | Polarizability volume:22.7 Å3 |
Erbium Appearance & Characteristics
Structure:hcp: hexagonal close pkd | Color:silvery-white |
Hardness:mohs | |
Harmful effects:
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Characteristics:
Uses: alloys, photogr. filter |
Erbium Reactions
Reaction with air:vigorous, => Er2O3 | Reaction with 6 M HCl:mild, => H2, ErCl3 |
Reaction with 15 M HNO3:mild, => Er(NO3)3 | Reaction with 6 M NaOH: |
Erbium Compounds
Oxide(s):Er2O3 | Chloride(s): ErCl3 |
Hydride(s):ErH2 ErH3 |
Erbium Radius
Atomic radius:176 pm | Ionic radius (1+ ion): pm |
Ionic radius (2+ ion): pm | Ionic radius (3+ ion):103 pm |
Ionic radius (2- ion): pm | Ionic radius (1- ion): pm |
Erbium Conductivity
Thermal conductivity:14.5 J/m-sec-deg | Electrical conductivity: 14.1 1/mohm-cm |
Erbium Abundance & Isotopes
Abundance earth's crust: 0.4 log | |
Abundance solar system: -0.601 log | |
Cost, pure:$765 per 100g | |
Cost, bulk:$65 per 100g | |
Source:
Monazite(phosphate),bastnaesite |
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Isotopes:
6 |
Erbium Other
Other:
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