The nucleus 158 has a half-life of 122.2 s; 198 have a half-life of 26.9s. If at

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The nucleus 158 has a half-life of 122.2 s; 198 have a half-life of 26.9s. If at some time a sample contains equal amounts of 158 O and 198 O, what is the ratio of 158 O to 198O?
(a) After 4.0 minutes and
(b) After 15.0 minutes?

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Physics

ISBN: 978-1118486894

10th edition

Authors: David Young, Shane Stadler

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Question Posted: Oct 25, 2010 01:57 AM

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The nucleus 158 has a half-life of 122.2 s; 198 have a half-life of 26.9s. If at

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a After 40 min 240 s the rat...View the full answer

Physics

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