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Asked by Linda

If the time at which a radioactive material decays to half of its original mass is twice the time at which the original mass of the material reduces to 80g.Determine the original mass of the substance .
6 years ago

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Answered by DrBob222
So you have gone through two half lives making 80 x 1 = 160 and 160 x 2 = 320
6 years ago

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