Cesium- 137 Undergoes Beta Decay and Has a Half- Life

question 52

Multiple Choice

Cesium- 137 undergoes beta decay and has a half- life of 30 years. How many beta particles are emitted by a 14.0- g sample of cesium- 137 in three minutes?

• A) 8.1 × 10¹⁵
• B) 6.2 × 10²²
• C) 6.1 × 10¹³
• D) 8.4 × 10¹⁵
• E) 1.3 × 10^{- 8}

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