Chemistry - Atomic Structure Question with Solution | TestHub

The difference between the radii of $3^{\mathrm{rd}}$ and $4^{\text{th }}$ orbits of ${\mathrm{L}}_{\mathrm{i}}^{2+}$ is ${\mathrm{\Delta R}}_1$. The difference between the radii of $3^{\mathrm{rd}}$ and $4^{\text{th }}$ orbits of ${\mathrm{He}}^{+}$ $\Delta {\mathrm{R}}_2.$ Ratio $\Delta {\mathrm{R}}_1:\Delta {\mathrm{R}}_2$ is :