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Classifications |
Alternate Names | None |
Names of Allotropes | None |
Block | f |
Group | N/A |
Period | 6 |
Series | Lanthanide |
Electron Configuration | [Xe]6s24f7 |
Color | Silver |
Discovery | |
Gas phase | N/A |
CAS Number | CAS7440-53-1 |
CID Number | |
RTECS Number | N/A |
Electrical properties |
Electrical Type | Conductor |
Electrical Conductivity | 1.1×106 S/m |
Resistivity | 9×10-7 m Ω |
Superconducting Point | 1.8[note] |
Magnetic properties |
Magnetic Type | Paramagnetic |
Curie Point | N/A |
Mass Magnetic Susceptibility | 2.76×10-7 m3/Kg |
Molar Magnetic Susceptibility | 4.1942×10-8 m3/mol |
Volume Magnetic Susceptibility | 0.0014473 |
Abundances |
% in Universe | 5×10-8% |
% in Sun | 5×10-8% |
% in Meteorites | 5.9×10-6% |
% in Earth's Crust | 0.00018% |
% in Oceans | 1.3×10-11% |
% in Humans | N/A |
Atomic dimensions and structure |
Atomic Radius | 231 pm |
Covalent Radius | 198 pm |
Van der Waals Radius | N/A |
Crystal Structure | Body-centered Cubic |
Lattice Angles | |
Lattice Constants | |
Space Group Name | Im_
3m |
Space Group Number | 229 |
Nuclear Properties |
Half-Life | Stable |
Lifetime | Stable |
Decay Mode | N/A |
Quantum Numbers | 8S7/2 |
Neutron Cross Section | 4570 |
Neutron Mass Absorption | 0.6 |
Known Isotopes | 130Eu, 131Eu, 132Eu, 133Eu, 134Eu, 135Eu, 136Eu, 137Eu, 138Eu, 139Eu, 140Eu, 141Eu, 142Eu, 143Eu, 144Eu, 145Eu, 146Eu, 147Eu, 148Eu, 149Eu, 150Eu, 151Eu, 152Eu, 153Eu, 154Eu, 155Eu, 156Eu, 157Eu, 158Eu, 159Eu, 160Eu, 161Eu, 162Eu, 163Eu, 164Eu, 165Eu, 166Eu, 167Eu |
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Stable Isotopes | |
Isotopic Abundances | |
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