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einsteindude einsteindude
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Posts: 5058
7 years ago
The isotope Ga-68 has a half-life of 68 minutes. If a diagnostic test is begun with 15 mCi of this isotope, how much is left after approximately 2 hr and 15 min?
A) 6.8 mCi
B) 68 µCi
C) 3.8 mCi
D) 7.5 mCi
E) 3.8 µCi
Textbook 

Conceptual Physical Science


Edition: 6th
Authors:
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f_zah1f_zah1
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7 years ago
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