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]
10.44: A radioactive sample of gas has a half-life of 1)+wl 1p.fo qan0v5r:t8(yut i ;joqhf 86zyyx*b* tv 0o0 seconds. If there are initially 10000 of these gas molecules in a closed container, j httuy:b8z;o** vioqrvf t( x6yy 508approximately how many of the molecules remain after a time of 250 seconds elapses?
A. 2500
B. 2190
C. 1770
D. 1560
E. 1250
参考答案: C
本题详细解析:
暂无
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