A 120-mg sample of technetium-99m is used for a diagnostic test. If technetium-99m has a
Chapter 0, Problem 5.67(choose chapter or problem)
A 120-mg sample of technetium-99m is used for a diagnostic test. If technetium-99m has a half-life of 6.0 h, how many milligrams of the technetium-99m sample remains active 24 h after the test? 15.42
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