Explain how many milligrams of sample remains

Reference no: EM13233048

The half-life of cobalt-60 is 5.20 yr. How many milligrams of a 1.000-mg sample remains after 3.50 years?

a/ 1.593
b/ 0.372
c/ 0.628
d/ 1.486
e/ 1.25 × 10-8

Reference no: EM13233048

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