|
Isotope |
Half Life |
|
Polonium-215 |
0.0018 seconds |
|
Uranium-238 |
4.5 billion years |
|
Radium-226 |
1600 years |
|
Cobalt-60 |
5.26 years |
|
Iodine-131 |
8.07 days |
|
Sodium-24 |
15 hours |
|
Bismuth-212 |
60.5 seconds |
|
Holmium-166 |
1200 years |
|
Selenium-79 |
1130000 years |
|
Samarium-147 |
106000000000 years |
|
Indium-115 |
|
|
Carbon-14 |
5730 years |
|
Uranium-233 |
159200 years |
|
Rhenium-186m |
200000 years |
|
Technetium-99 |
211000 years |
|
Krypton-81 |
229000 years |
|
Uranium-234 |
245500 years |
|
Chlorine-36 |
301000 years |
|
Curium-248 |
340000 years |
|
Bismuth-208 |
368000 years |
|
Plutonium-242 |
373300 years |
|
Aluminum-26 |
717000 years |
|
Selenium-79 |
1130000 years |
|
Iron-60 |
1500000 years |
years