A wooden artifact and a freshly cut tree are found to have Carbon-14 activities of and respectively. — Nuclear Chemistry and Radioactivity Chemistry Question

💡 Solution & Explanation

The activity of the artifact ($7.6$) is exactly half that of the fresh wood ($15.2$). Since the activity has dropped to $1/2$ of its original value, exactly one half-life has elapsed. Therefore, the age of the artifact is $1 \times 5760\text{ years} = 5760\text{ years}$.