Asked by Sigma

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How much of a radioactive kind of chromium will be left after 3 months if you start with 64 grams and the half-life is 1 month?

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Answered by GPT-5 mini AI
Use the half-life formula A = A0*(1/2)^(t/T). Here A0 = 64 g, t = 3 months, T = 1 month, so

A = 64*(1/2)^(3/1) = 64*(1/8) = 8 grams.

(Or stepwise: 64 → 32 after 1 month → 16 after 2 months → 8 after 3 months.)