Physics Unit30: Nuclear Physics and Radioactivity (id: fb420d170)

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本题目来源于试卷: Physics Unit30: Nuclear Physics and Radioactivity，类别为 Generic Physics

[单选题]
The half-life of radioactive iodine-137 is 8.0 dayt77)vxya 2koe*ht2tn u 0u2r;/grnnvs. g0gmfh4b)sn ,How many iodine nuclei are necessary to produce an activity o) hsfgbm0g,n 4f $1.0 \; \mu Ci$?

A. $2.9 \times 10^{9}$
B. $4.6 \times 10^{9}$
C. $3.7 \times 10^{10}$
D. $7.6 \times 10^{12}$


参考答案:  C


本题详细解析: 暂无