Question

Half life of iodine - 131 in 8 days. If 20 gm is present initially, how much iodine is left beher after 2 half lives?​

Answer 1

Answer:

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Answer 2

As an example, iodine-131 is a radioisotope with a half-life of 8 days. It decays by beta particle emission into xenon-131. After eight days have passed, half of the atoms of any sample of iodine-131 will have decayed, and the sample will now be 50% iodine-131 and 50% xenon-131.