Solved: Today, uranium-235 comprises only 0.72% of natural uranium; essentially all the
Chapter 38, Problem 60(choose chapter or problem)
Today, uranium-235 comprises only 0.72% of natural uranium; essentially all the rest is U-238. Use the half-lives in Table 38.1 to determine the percentage of uranium-235 when Earth formed about 4.5 billion years ago
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