本题目来源于试卷: Half-life and decay constant，类别为 美国物理杯赛(Physics Bowl)
[单选题]
A hypothetical radioactive suqu) ;u 7dpr.lv bnrj6*bstance Aaptinium decays 8 io0l*a-f l qxm(tyevok*: oj(p73 ol6y8p gtvia alpha-emission into Physicsbowlium. The decay cons6i*o7o8g:tx loqo j-v*0(lmaky 3p p y8tlef(tant for this alpha-emission is 20 $s^{-1}$.
12.42 What is the half-life of Aaptinium?
A. 0.035 s
B. 0.050s
C. 0.100 s
D. 0.297 s
E. 0.693 s
参考答案: A
本题详细解析:
暂无
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