Radioactivity is commonly measured by counting events, and the activity of a particular sample can be reported

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Radioactivity is commonly measured by counting events, and the activity of a particular sample can be reported as a count rate (counts per second, etc.). Suppose a sample of gallium contains 70Ga with a half-life of 21.1 minutes. If the sample initially produces 455 counts per second, after what time would the sample produce 115 counts per second?

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Chemistry For Engineering Students

ISBN: 9780357026991

4th Edition

Authors: Lawrence S. Brown, Tom Holme

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