The nuclide ^{131}I is radioactive,with a hal | vedclass

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(C) The number of days from January $1$ to January $24$ is $23$ days.The half-life of the nuclide is $T_{1/2} = 8.04$ days.The number of half-lives el

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More than $75 \, Bq$

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(C) The number of days from January $1$ to January $24$ is $23$ days.The half-life of the nuclide is $T_{1/2} = 8.04$ days.The number of half-lives elapsed is $n = \frac{23}{8.04} \approx 2.86$.Since $n After $1$ half-life,activity = $600 / 2 = 300 \, Bq$.After $2$ half-lives,activity = $300 / 2 = 150 \, Bq$.After $3$ half-lives,activity = $150 / 2 = 75 \, Bq$.Since the elapsed time is less than $3$ half-lives $(2.86 < 3)$,the remaining activity will be greater than $75 \, Bq$.

The nuclide $^{131}I$ is radioactive,with a half-life of $8.04$ days. At noon on January $1$,the activity of a certain sample is $600 \, Bq$. The activity at noon on January $24$ will be

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