Bohr's Model for Hydrogen Atom

Question

Which state of Be^{3+} has the same orbit radius as that of the ground state ofhydrogen atom?

Easy

Solution

From Bohr's atomic model, atomic radius for nth state is given by the formula,

$\mathrm{r}=0.529\frac{{n}^{2}}{Z}\stackrel{0}{\mathrm{A}}$

Since for Be, z=4

$\frac{{\mathrm{n}}^{2}}{4}=\frac{{1}^{2}}{1}$

Hence, n=2

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Download Now