Initial radionuclides existing since the earth was formed and which have not completely decayed due to their long half-lifeThe period during which half of the nuclei decay in a quanti... in addition to the radionuclides generated from the primordial radionuclides U 238, U 235 and Th 232 of the associated decayThe spontaneous conversion of a nuclide into another nuclide... chain.
| NuclideA nuclide is a type of atom characterized by its proton numb... | Half-lifeThe period during which half of the nuclei decay in a quanti... | NuclideA nuclide is a type of atom characterized by its proton numb... |
Half-lifeThe period during which half of the nuclei decay in a quanti... |
|
| K-40 |
1.3*109 |
La-138 |
1.1*1011 |
|
| V-50 |
1.4*1017 |
Nd-144 |
2.3*1015 |
|
| Ge-76 |
1.5*1021 |
Nd-150 |
1.7*1019 |
|
| Se-82 |
1.0*1020 |
Sm-147 |
1.1*1011 |
|
| Rb-87 |
4.8*1010 |
Sm-148 |
7.0*1015 |
|
| Zr-96 |
3.9*1019 |
Gd-152 |
1.1*1014 |
|
| Mo-100 |
1.2*1019 |
Lu-176 |
2.6*1010 |
|
| Cd-113 |
9.0*1015 |
Hf-174 |
2.0*1015 |
|
| Cd-119 |
2.6*1019 |
Ta-180 |
1.2*1015 |
|
| In-115 |
4.4*1014 |
Re-187 |
5.0*1010 |
|
| Te-123 |
1.2*1013 |
Os-186 |
2.0*1015 |
|
| Te-128 |
7.2*1024 |
Pt-190 |
6.5*1011 |
|
| Te-130 |
2.7*1021 |
Bi-209 |
1.9*1019 |
Primordial radionuclides outside of decayThe spontaneous conversion of a nuclide into another nuclide... chains