Chemistry

Problem

The activity of living wood is

16\,\text{disintegrations min}^{-1}\,\text{g}^{-1}

. An archaeological wooden sample shows an activity of

4\,\text{disintegrations min}^{-1}\,\text{g}^{-1}

. Taking the half-life of

^{14}\text{C}

5730\,\text{years}

, estimate the age of the sample. a)

7.9\times10^{3}\,\text{years}

4.3\times10^{3}\,\text{years}

1.146\times10^{4}\,\text{years}

2.29\times10^{4}\,\text{years}