What fraction of the original sample will be after 22 years, if the C – McqOptions

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1.	What fraction of the original sample will be after 22 years, if the Cobalt-50 is a radioactive element with a half-life of 4.3 years?
A.	1 ⁄ 32
B.	1 ⁄ 16
C.	1 ⁄ 8
D.	1 ⁄ 4
Answer» C. 1 ⁄ 8

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