Multiple Choice
Cobalt-60 is a beta emitter with a half-life of 5.3 years. Approximately what fraction of cobalt-60 atoms will remain in a particular sample after 26.5 years
A) 1/5
B) 1/16
C) 1/26
D) 1/32
E) 1/64
Correct Answer:

Verified
Correct Answer:
Verified
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