The Beta Decay of Cesium-137 Has a Half-Life of 30

question 22

Multiple Choice

The beta decay of cesium-137 has a half-life of 30.0 years.How many years must pass to reduce a 30 mg sample of cesium 137 to 5.2 mg?

• A)76 years
• B)-76 years
• C)38 years
• D)0.040 years
• E)25 years

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