Multiple Choice
The half-life of cobalt-60 is 5.20 yr. How many milligrams of a 2.000-mg sample remains after 6.55 years?
A) 0.837
B) 3.23 × 10-15
C) 4.779
D) 1.588
E) 1.163
Correct Answer:
Verified
Correct Answer:
Verified
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