1. Science
  2. Chemistry
  3. the halflife of molybdenum99 used in nuclear medicine as an...

Question: the halflife of molybdenum99 used in nuclear medicine as an...

Question details

The half-life of molybdenum-99 (used in nuclear medicine as an imaging agent) is 67 hours. How much of a 1.0 mg sample of 99Mo remains after 335 hours? 335 hours = 5 x 67 hours, i.e., 5 half-lives. After 5 half-lives 96.9% of the material has decayed Thus, 1.00*0.031 = 0.031 mg remains. This isotope is prepared in nuclear reactors and shipped to hospitals around the world – it must be used clinically in < 4-5 half-lives after production!

Solution by an expert tutor
Blurred Solution
This question has been solved
Subscribe to see this solution