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Physics, 17.03.2020 06:30 debrielcalderon

A radioactive nucleus has a half-life of 5*108 years. Assuming that a sample of rock (say, in an asteroid) solidified right after the solar system formed, approximately what fraction of the radioactive element should be left in the rock today? The age of the solar system is 4.5*109 years. (No calculator is necessary, but if it helps use it.)

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A radioactive nucleus has a half-life of 5*108 years. Assuming that a sample of rock (say, in an ast...
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