The activity of a carbon-14 sample is 0.1 Ci. If this sample is burned, what is the activity of the resulting CO₂? A)zero curies B)0.1 Ci C)0.2 Ci D)0.3 Ci E)2.00 Ci

Question

Quizplus · Accepted Answer

The activity of a radioactive sample is determined by the number of radioactive atoms present, not by its chemical form. Burning the sample to form CO2 does not change the number of carbon-14 atoms, so the activity remains 0.1 Ci.

The Activity of a Carbon-14 Sample Is 0