The half life of 227 Th is 18 72 days It decays by a emission to 223 Ra, an a emitter whose half life is 11 43 days A particular sample contains 10 6 atoms of 227 Th and no 223 Ra at time t 0 (a) How many atoms of each type will be in the sample at t 15 days (b) At what time will the number of atom...

The half-life of 227 Th is 18.72 days. It decays by a emission to 223 Ra, an

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The half-life of ²²⁷Th is 18.72 days. It decays by a emission to ²²³Ra, an a emitter whose half-life is 11.43 days. A particular sample contains 10⁶ atoms of ²²⁷Th and no ²²³Ra at time t = 0.

(a) How many atoms of each type will be in the sample at t = 15 days?
(b) At what time will the number of atoms of each type be equal?

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Modern Physics

ISBN: 9781429250788

6th Edition

Authors: Paul A. Tipler, Ralph Llewellyn

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Question Posted: Mar 08, 2023 06:02 AM

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The half-life of 227 Th is 18.72 days. It decays by a emission to 223 Ra, an

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