Physics

Problem

1.00\,\text{g}

^{131}\text{I}

(half-life

8\,\text{days}

) is sealed in a container. What mass of the isotope will remain undecayed after

24\,\text{days}

? a)

0.250\,\text{g}

0.875\,\text{g}

0.125\,\text{g}

0.0625\,\text{g}