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Iodine-131 is a radioactive isotope of iodine with a half-life of 8.02 days. It is used in medical, nuclear, and industrial applications, and can be produced by neutron irradiation of tellurium or by fission of uranium.
Learn about the 37 known isotopes of iodine, from 108 I to 144 I, and their decay modes, half-lives, and applications. Find out how iodine is a monoisotopic and mononuclidic element, and how radioactive iodine is used in medicine and nuclear accidents.
A comprehensive list of fission products produced by nuclear fission of uranium and plutonium, with their half-lives, yields, and decay modes. Learn about the chemical and radiological properties of these elements and their applications and hazards.
Iodine is a non-metallic halogen that exists as a solid, liquid, or gas at different temperatures. It has various oxidation states and applications, such as in medicine, photography, and catalysis. Learn more about its discovery, isotopes, and chemical reactions.
The Three Mile Island accident was a partial nuclear meltdown of the Unit 2 reactor on March 28, 1979, in Pennsylvania, U.S. It is the worst accident in U.S. commercial nuclear power plant history and led to new regulations and anti-nuclear concerns.
Source of much of the decay heat together with 137 Cs on the timespan of years to decades after irradiation. Formerly used in radioisotope thermoelectric generators. 2.8336%: Iodine: 131 I: 8.02 d: Reason for the use of potassium iodide tablets after nuclear accidents or nuclear bomb explosions. 2.2713%: Promethium: 147 Pm: 2.62 y
The decay scheme of a radioactive substance is a graphical presentation of all the transitions occurring in a decay, and of their relationships. Examples are shown below. It is useful to think of the decay scheme as placed in a coordinate system, where the vertical axis is energy, increasing from bottom to top, and the horizontal axis is the proton number, increasing from left to right.
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