An sample of isotope Q has a half-life of

PHYSICS · Single correct · CBSE · Physics · Nuclei · Nuclei

Problem

80\,\text{g}

sample of isotope Q has a half-life of

4.0\,\text{yr}

. Approximately how much of the isotope will remain after

12\,\text{yr}

? (a)

20\,\text{g}

(b)

10\,\text{g}

(c)

40\,\text{g}

(d)

13\,\text{g}