Technetium-99m, a metastable radioactive isotope with a half life of 6.0 hrs, is used in more than 85% of the diagnostic
Posted: Thu Jun 30, 2022 6:12 pm
Technetium-99m, a metastable radioactive isotope with a halflife of 6.0 hrs, is used in more than 85% of the diagnostic scansdone in hospitals each year. If Tc-99m decays by a firstorder reaction, how much of a 4.5 mg sample will be left after 16.4hours? Report your answer using 2 significantfigures. Report the correct units.