Chemistry - Atomic Structure Question with Solution | TestHub

Change in kinetic energy is

$\text{x}- \frac{\text{x}}{9}=\frac{8\text{x}}{9}$

For Bohr model of atom

The kinetic energy in a state is equal to half of the potential energy in magnitude.

$\therefore \mathrm{P}\mathrm{o}\mathrm{t}\mathrm{e}\mathrm{n}\mathrm{t}\mathrm{i}\mathrm{a}\mathrm{l}\mathrm{ }\mathrm{e}\mathrm{n}\mathrm{e}\mathrm{r}\mathrm{g}\mathrm{y}$

$=2\mathrm{ }\mathrm{K}\mathrm{i}\mathrm{n}\mathrm{e}\mathrm{t}\mathrm{i}\mathrm{c}\mathrm{ }\mathrm{e}\mathrm{n}\mathrm{e}\mathrm{r}\mathrm{g}\mathrm{y}$

$2\times \frac{8\text{x}}{9} =\frac{16\text{x}}{9}$