A 100 G Sample of Carbon Taken from a Fossilized Plant

Multiple Choice

A 1.00 g sample of carbon taken from a fossilized plant has an activity of 0.19 atoms/s.What mass of ${ }_{6}^{14} \mathrm{C}$ is present? The decay constant of ${ }_{6}^{14} \mathrm{C}$ is 3.8 × 10?¹² s?¹.

A) 4.6 × 10?³⁴ g
B) 5.0 × 10?¹⁴ g
C) 1.2 × 10?¹² g
D) 6.1 × 10?¹² g
E) 3.2 × 10?¹¹ g