Two radioactive isotopes of iron, 52 Fe and 53 Fe, are both positron emitters with half-lives of
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Two radioactive isotopes of iron, 52Fe and 53Fe, are both positron emitters with half-lives of 8.28 hours and 8.51 minutes, respectively. A particular sample of iron initially emits positrons at a rate of 210 counts per minute. What would be the activity of the sample after 30 minutes if the original sample contained the following?
(a) Only 52Fe,
(b) Only 53Fe,
(c) A mixture of 50% of each isotope
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Chemistry For Engineering Students
ISBN: 9780357026991
4th Edition
Authors: Lawrence S. Brown, Tom Holme
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