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Iodine-129 (129 I; half-life 15.7 million years) is a product of cosmic ray spallation on various isotopes of xenon in the atmosphere, in cosmic ray muon interaction with tellurium-130, and also uranium and plutonium fission, both in subsurface rocks and nuclear reactors. Artificial nuclear processes, in particular nuclear fuel reprocessing and ...
This isotope of iodine has 78 neutrons in its nucleus, while the only stable nuclide, 127 I, has 74. ... 130 I : Iodine-131 is an isotope of iodine: Heavier: 132 I :
This is a list of radioactive nuclides (sometimes also called isotopes), ordered by half-life from shortest to longest, in seconds, minutes, hours, days and years. Current methods make it difficult to measure half-lives between approximately 10 −19 and 10 −10 seconds.
The longest-lived of the radioactive isotopes of iodine is iodine-129, which has a half-life of 15.7 million years, decaying via beta decay to stable xenon-129. [30] Some iodine-129 was formed along with iodine-127 before the formation of the Solar System , but it has by now completely decayed away, making it an extinct radionuclide .
For this reason, Iodine is often considered for transmutation despite the presence of stable 127 I in spent fuel. In the thermal neutron spectrum, more Iodine-129 is destroyed than newly created since Iodine-128 is short lived and the isotope ratio is in favor of 129 I. Depending on the design of the transmutation apparatus, care must be taken ...
Fears of a potential nuclear conflict after Russia’s invasion of Ukraine spark a huge interest in iodine tablets, which can protect the thyroid from radiation. Why are people rushing to buy ...
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This page uses the meta infobox {{Infobox isotopes (meta)}} for the element isotopes infobox.. This infobox contains the table of § Main isotopes, and the § Standard atomic weight.