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Classifications |
Alternate Names | None |
Names of Allotropes | None |
Block | f |
Group | N/A |
Period | 7 |
Series | Actinide |
Electron Configuration | [Rn]7s26d1 |
Color | Silver |
Discovery | |
Gas phase | N/A |
CAS Number | CAS7440-34-8 |
CID Number | N/A |
RTECS Number | N/A |
Electrical properties |
Electrical Type | N/A |
Electrical Conductivity | N/A |
Resistivity | N/A |
Superconducting Point | N/A |
Magnetic properties |
Magnetic Type | N/A |
Curie Point | N/A |
Mass Magnetic Susceptibility | N/A |
Molar Magnetic Susceptibility | N/A |
Volume Magnetic Susceptibility | N/A |
Abundances |
% in Universe | N/A |
% in Sun | 0% |
% in Meteorites | N/A |
% in Earth's Crust | N/A |
% in Oceans | N/A |
% in Humans | 0% |
Atomic dimensions and structure |
Atomic Radius | N/A |
Covalent Radius | 215 pm |
Van der Waals Radius | N/A |
Crystal Structure | Face-centered Cubic |
Lattice Angles | |
Lattice Constants | |
Space Group Name | Fm_
3m |
Space Group Number | 225 |
Nuclear Properties |
Half-Life | 21.78652968037 y |
Lifetime | 31.43106291223 y |
Decay Mode | BetaDecay |
Quantum Numbers | 2D3/2 |
Neutron Cross Section | 880 |
Neutron Mass Absorption | 0.078 |
Known Isotopes | 206Ac, 207Ac, 208Ac, 209Ac, 210Ac, 211Ac, 212Ac, 213Ac, 214Ac, 215Ac, 216Ac, 217Ac, 218Ac, 219Ac, 220Ac, 221Ac, 222Ac, 223Ac, 224Ac, 225Ac, 226Ac, 227Ac, 228Ac, 229Ac, 230Ac, 231Ac, 232Ac, 233Ac, 234Ac, 235Ac, 236Ac |
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Stable Isotopes | |
Isotopic Abundances | |
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