Explain approximately what fraction of cobalt

Reference no: EM13175644

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 12.0 years?
A. 1/5
B. 1/92
C. 1/9
D. None of these choices is correct
E. 1/10

Reference no: EM13175644

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