本题目来源于试卷: Nuclear & Quantum Physics E.1 Atomic Structure，类别为 IB物理学
[单选题]
The nucleon numbers of elements X and Y are A and 8A respecr n*q /wv5ut 8e0d m.vhgupm7(tively. Thei2 w m(/jnsvt0kr radii are / vsjn(0w2tm k$R_X$ and $R_Y$, and their densities are $ρ_X$ and $ρ_Y$.
Which of the following shows the correct values of the ratios $\frac{R_Y}{R_X}$ and $\frac{ρ_X}{ρ_Y}$?
A. $\frac{R_Y}{R_X}$ is 2 ; $\frac{ρ_X}{ρ_Y}$ is 1
B. $\frac{R_Y}{R_X}$ is 8 ; $\frac{ρ_X}{ρ_Y}$ is 2
C. $\frac{R_Y}{R_X}$ is 2 ; $\frac{ρ_X}{ρ_Y}$ is 2
D. $\frac{R_Y}{R_X}$ is 8 ; $\frac{ρ_X}{ρ_Y}$ is 1
参考答案: A
本题详细解析:
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