The half-life for the radioactive decay of U-238 is 4.5 billion years and is independent
Chapter 13, Problem 55(choose chapter or problem)
The half-life for the radioactive decay of U- 238 is 4.5 billion years and is independent of initial concentration. How long will it take for 10% of the U-238 atoms in a sample of U-238 to decay? If a sample of U-238 initially contained \(1.5 \times 10^{18}\) atoms when the universe was formed 13.8 billion years ago, how many U- 238 atoms does it contain today?
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