Technetium-99m, used to image the heart and brain,Has a half-life of 6.00 h.
What fraction of technetium-99m remains in the body after 1 day?
A) 0.0625
B) 0.250
C) 0.0313
D) 0.125

Name: Technetium-99m, used to image the heart and brain,Has a half-life of 6.00 h. What fraction of technetium-99m remains in the body after 1 day? A) 0.0625 B) 0.250 C) 0.0313 D) 0.125
Brand: Quizplus
Rating: 4.8 (36 reviews)

Question

Quizplus · Accepted Answer

After 1 day (24 hours), 4 half-lives (24/6) have passed. The fraction remaining is (1/2)^4 = 1/16 = 0.0625.

Technetium-99m, Used to Image the Heart and Brain,Has a Half-Life