After three half-lives have elapsed, the amount of an 8.0 g sample of a radionuclide that

Name: After three half-lives have elapsed, the amount of an 8.0 g sample of a radionuclide that
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Question

Quizplus · Accepted Answer

After one half-life, half of the original amount remains, so from 8.0 g, it would reduce to 4.0 g. After the second half-life, it would reduce by half again, to 2.0 g. After the third half-life, it would reduce by half once more, to 1.0 g. Thus, both A (1.0 g remains undecayed) and B (7.0 g has decayed) are correct.

After Three Half-Lives Have Elapsed, the Amount of an 8