Nuclear Energy; Effects and Uses of Radiation (id: 2581d9272)

本题目来源于试卷: Nuclear Energy; Effects and Uses of Radiation，类别为 IB物理学

[填空题]
A large amount of $_{38}^{90}\text{Sr}$ was released during the Chernobyl nuclear reactor accident in 1986. The $_{38}^{90}\text{Sr}$ enters the body through the food chain. How long will it take for 90% of the $_{38}^{90}\text{Sr}$ released during the accident to decay? See Appendix B.$\approx $    y

参考答案: 96±2%


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