At the start of a measurement, a radioisotope has 10,000 unstable nuclei. Over 2
ID: 1646378 • Letter: A
Question
At the start of a measurement, a radioisotope has 10,000 unstable nuclei. Over 2 days 5,000 of these unstable nuclei undergo radioactive decay to stable nuclei. What is the half life of this radioisotope? At the start of a measurement, a radioisotope has 10,000 unstable nuclei. Over 2 days 5,000 of these unstable nuclei undergo radioactive decay to stable nuclei. What is the half life of this radioisotope? At the start of a measurement, a radioisotope has 10,000 unstable nuclei. Over 2 days 5,000 of these unstable nuclei undergo radioactive decay to stable nuclei. What is the half life of this radioisotope?Explanation / Answer
Half life is the time in which nuclei become half.
after 2 days nuclei become half of 10000 = 5000
hence the half life time of this radioisotope = 2 days
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