doublejojo8776 doublejojo8776
  • 11-03-2024
  • Mathematics
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How long will it take for 10% of the U-238 atoms in a sample of U-238 to decay?
a. Depends on the initial mass of the sample
b. About 4.5 billion years
c. About 4.5 million years
d. About 450,000 years

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