Almost all of naturally occurring uranium is with a half-life of Most of the rest of
Chapter 30, Problem 30.82(choose chapter or problem)
Almost all of naturally occurring uranium is with a half-life of Most of the rest of natural uranium is with a half-life of Today a sample contains 0.720% (a) What was this percentage 1.0 billion years ago? (b) What percentage of uranium will be 100 million years from now?
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