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Iodine-131 is a radioactive isotope of the element iodine.
The thyroid gland is often imaged using a salt of iodine-131 as this gland has a high uptake of iodine.
Fission product xenon-131
Iodine 131 has a half-life of 8.0197 days. Barium has no half-life. So no, Iodine-131 is not more stable than barium-137.
Iodine-131 (not iodone) is a radioactive isotope of iodine: this isotope has important applications in the treatment of thyroid diseases.
52
94
Iodine is a non metal element. Atomic mass of it is 127.
Iodine-131 is not natural, matter of fact it is a synthetically produced isotope (im doing this for my science assignment aswell)
you can find the number of protons by looking at the atomic number (53), as the number of protons does not change between isotopes. You can find the number of neutrons by subtracting the atomic number from the atomic mass (131), therefore, iodine-131 has 53 protons and 78 neutrons.
I-131.
Iodine 131 -> Xe 131 + e-