Europium | |
Electrons per shell | 2,8,18,25,8,2 |
Electron Configuration | [Xe] 4f7 6s2 ![]() |
Ground state | 8S°7/2 |
Atomic Volume | 28.9 cm3 mol-1 |
Electronegativity | 1.2 |
Magnetic ordering | No data |
Mass magnetic susceptibility | 2.76 x 10-7 |
Molar magnetic susceptibility | 4.1942 x 10-8 |
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Enthalpy of Atomization | 180 kJ mol-1 @25°C |
Enthalpy of Fusion | 10.5 kJ mol-1 |
Enthalpy of Vaporisation | 176 kJ mol-1 |
Heat Capacity | 27.66 J mol-1 K-1 |
Thermal Conductivity | 13.9 W m-1 K-1 |
Thermal Expansion | 35 μm m-1 K-1 |
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Vickers hardness | 167 MPa |
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Bulk modulus | 8.3 GPa |
Poisson ratio | 0.152 |
Shear modulus | 7.9 GPa |
Young's modulus | 18.2 GPa |
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Electrical resistivity | 9.0 x 10-7 Ω m |
Electrical conductivity | 0.0112 106/cm Ω |
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Electrochemical Equivalent | 1.8899 g Ah-1 |
Electron Work Function | 2.5 eV |
Valence Electron Potential (-eV) | 45.6 |
Ionization Potential | |
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5.67 |
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11.245 |
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24.926 |
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|
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41.5422 KeV |
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40.9019 KeV |
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47.0379 KeV |
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48.2018 KeV |
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46.8984 KeV |
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5.8457 KeV |
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5.8166 KeV |
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6.4564 KeV |
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6.8432 KeV |
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6.57 KeV |
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6.4364 KeV |
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7.4803 KeV |
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7.7645 KeV |
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5.815 KeV |
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5.1763 KeV |
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|
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185 pm |
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231 pm |
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185 pm |
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No data. |
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No data. |
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208.4 pm |
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Eu+3 |
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Eu+2 |
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|
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546.7 |
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1085 |
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2404 |
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4110 |
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P (Pa) | 1 | 10 | 100 | 1K | 10K | 100K |
T (K) | 863 | 957 | 1072 | 1234 | 1452 | 1796 |
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Body centred cubic |
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a = 458.1 pm |
b = 458.1 pm | |
c = 458.1 pm | |
α = 90° | |
β = 90° | |
γ = 90° |