問題詳情

11. Element X has only two isotopes, 1 and 2, and its atomic weight is y.33 u. Of thefollowing combinations of isotope abundance and corresponding neutron number,which is the most reasonable? (note: y, z, p, q and r are integers)


(A)
(B)
(C)
(D)
(E)

參考答案

答案:E
難度:計算中-1
書單:沒有書單,新增