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Atomic Number 78
Atomic Weight 195.08
Electron Config. 2-2-6-2-6-10-2-6-10-14-2-6-9-0-1
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 21500 kg/m3 Solid  298.15 
Modulus of Elasticity 144.79 GPa Solid  0   
Poisson Ratio 0.38 Solid     
Thermal Expansion Coefficient 8.800 /K Solid  298.15  

Electrical Properties Conditions
Temp. (K) Note
Electrical Resistivity 1.060 W-m 293.15  

Thermal Properties Conditions
Temp. (K) Pressure (Pa)
Melting Temperature 2041.55 K   101325 
Boiling Temperature 4098.15 K   101325 
Critical Temperature 10700 K    
Fusion Enthalpy 113.6 J/g 101325 
Heat Capacity 133 J/kg-K 298.149993896 100000 
Thermal Conductivity 71.6 W/m-K 300 more... 101325