chemistry

If there is a radiation that has a half life of 10 days and we have it for 110 days, what will be the fraction of radiation left?

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asked by g
  1. k = 0.693/10 days.
    Substitute into the expression below.
    ln(No/N) = kt.
    Solve for No/N and take the reciprocal. You want N/No.

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