Physics - Modern Physics Question with Solution | TestHub

Energy of helium ions.

$E_n = -$$\frac{13.6 Z^2}{n^2} \mathrm{e}\mathrm{V}$

In minimum position,$n$=1

For$\mathrm{H}{\mathrm{e}}^{+}, Z=2$

$E=\frac{-13.6 {\times \left(2\right)}^2}{1} \mathrm{e}\mathrm{V}$

$E=54.4 \mathrm{e}\mathrm{V}$