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Classifications |
Alternate Names | None |
Names of Allotropes | None |
Block | f |
Group | N/A |
Period | 7 |
Series | Actinide |
Electron Configuration | [Rn]7s26d2 |
Color | Silver |
Discovery | |
Gas phase | N/A |
CAS Number | CAS7440-29-1 |
CID Number | |
RTECS Number | |
Electrical properties |
Electrical Type | Conductor |
Electrical Conductivity | 6.7×106 S/m |
Resistivity | 1.5×10-7 m Ω |
Superconducting Point | 1.38 |
Magnetic properties |
Magnetic Type | Paramagnetic |
Curie Point | N/A |
Mass Magnetic Susceptibility | 7.2×10-9 m3/Kg |
Molar Magnetic Susceptibility | 1.7×10-9 m3/mol |
Volume Magnetic Susceptibility | 0.000084 |
Abundances |
% in Universe | 4×10-8% |
% in Sun | 3×10-8% |
% in Meteorites | 3.9×10-6% |
% in Earth's Crust | 0.0006% |
% in Oceans | 4×10-12% |
% in Humans | 0% |
Atomic dimensions and structure |
Atomic Radius | N/A |
Covalent Radius | 206 pm |
Van der Waals Radius | N/A |
Crystal Structure | Face-centered Cubic |
Lattice Angles | |
Lattice Constants | 508.42, 508.42, 508.42 pm |
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Space Group Name | Fm_
3m |
Space Group Number | 225 |
Nuclear Properties |
Half-Life | 1.40601217656×1010 y |
Lifetime | 2.028475393201×1010 y |
Decay Mode | AlphaEmission |
Quantum Numbers | 3F2 |
Neutron Cross Section | 7.4 |
Neutron Mass Absorption | 0.001 |
Known Isotopes | 209Th, 210Th, 211Th, 212Th, 213Th, 214Th, 215Th, 216Th, 217Th, 218Th, 219Th, 220Th, 221Th, 222Th, 223Th, 224Th, 225Th, 226Th, 227Th, 228Th, 229Th, 230Th, 231Th, 232Th, 233Th, 234Th, 235Th, 236Th, 237Th, 238Th |
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Stable Isotopes | |
Isotopic Abundances | |
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