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The radioactive isotope tritium decays with a first-order rate constant k of 0.056 year-1. what fraction of the tritium initially in a sample is still present 30 years later?
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The radioactive isotope tritium decays with a first-order rate constant k of 0.056 year-1. what fraction of the tritium initially in a sample is still present 30 years later?

User Sawny
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does this involve half lives
User Niana
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