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11 January, 15:58

Fermium-253 has a half-life of three days. a sample contains 400 g. how long will it take for the sample to decay to 100 g?

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  1. 11 January, 17:26
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    This is a relatively easy half life calculation.

    After one half-life period, half of the isotope remains.

    After two half-life periods, one quarter of the isotope remains.

    That being the case, we see this will take 2 half-life periods or 6 days.
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