問題詳情

19. The radioactive nuclide of a certain element has undergone 87.5% decay during 360 years, whichmeans that 12.5% of the original amount remains. How long is the half-life of this nuclide?


(A) 180
(B) 150
(C) 120
(D)100 

參考答案

答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增