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Cesium-134 Is A $\beta$ Emitter with a Half-Life of 2

Question 28

Multiple Choice

Cesium-134 is a $\beta$ emitter with a half-life of 2.0 years. How much of a 2.50-g sample of cesium-134 will remain after 10 years?

A) 0.0024 g
B) 0.078 g
C) 0.25 g
D) 0.50 g
E) None of these choices is correct.

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