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The Cs-131 Nuclide Has a Half-Life of 30

Question 47

Multiple Choice

The Cs-131 nuclide has a half-life of 30.years.After 144 years,about 3.0 grams remain.The original mass of the Cs-131 sample is closest to

A) 167 g
B) 42 g
C) 84 g
D) 292 g
E) 100 g

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