pertain to a 0.25 gram sample of the 32 P nuclide which has a half life of 14.28 days and a specific activity of 1.07´10 16 Bq·g - 1 .

-Refer to Exhibit 19-1. What is the activity of the 0.25 gram sample after 30 days?

Question

pertain to a 0.25 gram sample of the 32 P nuclide which has a half life of 14.28 days and a specific activity of 1.07´10 16 Bq·g - 1 .

-Refer to Exhibit 19-1. What is the activity of the 0.25 gram sample after 30 days?

Quizplus · Accepted Answer

The activity of the sample decreases over time due to radioactive decay. After 30 days, which is slightly more than two half-lives (14.28 days each), the activity would have decreased significantly. The calculation involves determining the initial activity based on the specific activity and mass, then applying the decay formula. Choice A provides a plausible value considering the decay over this period.

Pertain to a 0