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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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einsteindude einsteindude
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9 years ago
Technetium-99m has a half-life of 6 hr. How long will it take for the activity of a sample of this isotope to decay from an activity of 50 mCi to an activity of 25 mCi?
A) 1 hr
B) 2 hr
C) 4 hr
D) 6 hr
E) 12 hr
Textbook 
Conceptual Physical Science

Conceptual Physical Science


Edition: 6th
Authors:
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f_zah1f_zah1
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