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In reality so called Stable nuclides may are instable due to very long half-lifes and thus a radioactive decay was not experimentally observed until today. Therefore for those nuclides where no half-life is known, these are sorted by theoretically expected decay-mode and then by relative mass excess (column energy in the following list). Of course, this list must start with the primordial nuclides (up to and including position 288).
hint: 3.15576/cdot 10 sec = 1 year
decay mode legend
| @ | alpha-decay |
| - | beta- decay |
| K | electron capture |
| + | beta+ decay |
| F | spontaneous fission |
| 2 | double beta- decay |
| Z | double beta+ decay |
| I | isomeric transition |
list of nuclides
The colum labled "energy" denotes the mass of a nuclide for each nucleon in MeV relative to the mass of a neutron (so all nuclides gets a positive value)
| no | nuclide | energy | half-life (sec) | decay mode | decay energy (MeV) |
|---|---|---|---|---|---|
| 1 | Fe | 9.153567 | |||
| 2 | Ni | 9.147877 | |||
| 3 | Ni | 9.145862 | |||
| 4 | Fe | 9.142938 | |||
| 5 | Cr | 9.137037 | |||
| 6 | Fe | 9.127119 | |||
| 7 | Co | 9.126046 | |||
| 8 | Cr | 9.125633 | |||
| 9 | Ni | 9.124129 | |||
| 91 | Mo | 9.011856 | (F) | < 4.485 | |
| 92 | Nb | 9.009051 | (F) | < 0.943 | |
| 93 | Mo | 8.996229 | (F) | < 5.771 | |
| 94 | Mo | 8.994564 | (F) | < 4.531 | |
| 95 | Mo | 8.973806 | (F) | < 6.226 | |
| 96 | Ru | 8.971572 | (F) | < 11.690 | |
| 97 | Ru | 8.963517 | (F) | < 13.634 | |
| 98 | Ru | 8.956348 | (F) | < 12.368 | |
| 99 | Ru | 8.944837 | (F) | < 12.049 | |
| 220 | Hg | 8.208956 | (@) | 0.3341 | |
| 221 | Hg | 8.206703 | (@) | 0.1363 | |
| 222 | Tl | 8.198230 | (@) | 0.9108 | |
| 223 | Hg | 8.192358 | (2) | 0.4163 | |
| 224 | Tl | 8.187526 | (@) | 0.1567 | |
| 225 | Pb | 8.186791 | (@) | 1.1366 | |
| 226 | Pb | 8.179791 | (@) | 0.3915 | |
| 227 | Pb | 8.175888 | (@) | 0.5188 | |
| 228 | Ge | 9.034656 | 3.787*10 | 2 | 2.039 |
| 229 | Te | 8.743261 | > 1.578*10 | 2 | 2.530 |
| 230 | Xe | 8.728973 | > 1.830*10 | 2 | 0.825 |
| 231 | Ca | 8.942485 | > 9.467*10 | Z | 0.194 |
| 232 | Ba | 8.741288 | > 9.467*10 | Z | 0.846 |
| 233 | Xe | 8.706805 | > 7.574*10 | 2 | 2.462 |
| 234 | Zr | 8.961359 | > 1.231*10 | 2 | 3.348 |
| 235 | Kr | 9.022349 | > 7.258*10 | Z | 2.846 |
| 284 | U | 7.872551 | 1.410*10 | @ F | 4.270 |
| 285 | K | 8.909707 | 3.938*10 | – K + | 1.311 , 1.505 , 1.505 |
| 286 | U | 7.897198 | 2.222*10 | @ F | 4.679 |
| 287 | Sm | 8.626136 | 3.250*10 | @ | 2.529 |
| 288 | Pu | 7.826221 | 2.525*10 | @ F | 4.666 |
| 289 | Nb | 9.010980 | 1.095*10 | K (–) | 0.561 , 0.357 |
| 290 | U | 7.891470 | 7.391*10 | @ F | 4.573 |
| 291 | Pb | 8.187279 | 5.459*10 | + | 0.051 |
| 292 | J | 8.757397 | 4.955*10 | – | 0.194 |
| 293 | Cm | 7.806008 | 4.923*10 | @ | |
| 294 | Hf | 8.324399 | 2.809*10 | – | |
| 295 | Pd | 8.897197 | 2.051*10 | – | 0.034 |
| 296 | Tc | 8.953246 | 1.325*10 | – | 1.796 |
| 297 | Mn | 9.103175 | 1.180*10 | + | 0.597 |
| 298 | Bi | 8.140473 | 9.594*10 | @ | |
| 299 | Dy | 8.528457 | 9.467*10 | @ | |
| 300 | Tc | 8.970503 | 8.203*10 | + | 0.320 |