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engineering fundamentals Element Information: Erbium
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Erbium
68
Er
167.26
Atomic Number 68
Atomic Weight 167.26
Electron Config. 2-2-6-2-6-10-2-6-10-12-2-6-0-0-2
Electron configuration order: 1s-2s-2p-3s-3p-3d-4s-4p-4d-4f-5s-5p-5d-5f-6s-6p-6d-7s

Mechanical Properties Conditions
Phase Temp. (K) Pressure (Pa)
Density 9070 kg/m3 Solid  298.15 
Modulus of Elasticity 110.316 GPa Solid  0   
Poisson Ratio 0.24 Solid     
Thermal Expansion Coefficient 1.220 /K Solid  298.15  

Electrical Properties Conditions
Temp. (K) Note
Electrical Resistivity 1.070 W-m 298.15  

Thermal Properties Conditions
Temp. (K) Pressure (Pa)
Melting Temperature 1802.15 K   101325 
Boiling Temperature 3135.15 K   101325 
Critical Temperature 7250 K    
Fusion Enthalpy 119 J/g 101325 
Heat Capacity 168 J/kg-K 298.149993896 100000 
Thermal Conductivity 14.5 W/m-K 300 101325 

 
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