Erbium

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Erbium
Er
In situ availability:
Necessity:
Atomic number: 68
Atomic mass: 167.26
group: 19
period: N/A
normal phase: Solid
series: Lanthanide
density: 9.066 g/cm3
melting point: 1802K,
1529°C,
2784°F
boiling point: 3141K,
2868°C,
5194°F
Sr ← Y → Zr
Ho ← Er → Tm
Es ← Fm → Md
Atomic radius (pm): 175
Bohr radius (pm): 226
Covalent radius (pm):
Van der Waals radius (pm):
ionic radius (pm): (+3)100
1st ion potential (eV): 6.11
Electron Configuration
1s2
2s2 2p6
3s2 3p6 3d10
4s2 4p6 4d10 4f12
5s2 5p6
6s2
Electrons Per Shell
2, 8, 18, 30, 8, 2
Electronegativity: 1.24
Electron Affinity: -
Oxidation states: 3
Magnetism: ?
Crystal structure: Hexagonal

Erbium is a Lanthanide metal. It has a Hexagonal crystalline structure. This element has 6 stable isotopes: 162, 164, 166, 167, 168, and 170.




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