Almost all of naturally occurring uranium is with a 23892U half-life of 4.468 109 yr. Most

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Almost all of naturally occurring uranium is with a 23892U half-life of 4.468 × 109 yr. Most of the rest of natural uranium is 23592U with a half-life of 7.04 × 108 yr. Today a sample contains 0.720% 23592U.

(a) What was this percentage 1.0 billion years ago?

(b) What percentage of uranium will be 23592U 100 million years from now?

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Physics Principles with Applications

ISBN: 978-0321762429

7th edition

Authors: Douglas C. Giancoli

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Question Posted: Oct 05, 2017 09:19 AM

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Almost all of naturally occurring uranium is with a 23892U half-life of 4.468 109 yr. Most

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