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Actinium
89
Ac
[227]
Atomic Number 89
Atomic Weight [227]
Electron Config. 2-2-6-2-6-10-2-6-10-14-2-6-10-0-2-6-1-2
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 10000 kg/m3 Solid  298.15 

Thermal Properties Conditions
Temp. (K) Pressure (Pa)
Melting Temperature 1324.15 K   101325 
Boiling Temperature 3471.15 K   101325 
Fusion Enthalpy 63 J/g 101325 
Heat Capacity 120 J/kg-K 298.149993896 100000 
 
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