A Radioactive Source Emits 2 $2.6 \times 10 ^ { 9 }$

question 38

Multiple Choice

A radioactive source emits 2.4-MeV neutrons at the rate of 7100 neutrons per second. The number of atoms in the source is $2.6 \times 10 ^ { 9 }$ What is the activity of the source, in curies (Ci) ? (1.00 Ci = 3.70 × 10¹⁰ Bq)

• A) 190 nCi
• B) 1900 nCi
• C) 19 nCi
• D) 71 nCi
• E) 710 nCi

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