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Physics, 24.10.2019 04:30 PinkDivaGirl02

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 1.5Γ—10181.5Γ—1018 atoms when the universe was formed 13.8 billion years ago, how many u-238 atoms does it contain today?

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The half-life for the radioactive decay of u-238 is 4.5 billion years and is independent of initial...
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