t) Where \begin{array}{l} h=6.63 \times 10^{-34} \mathrm{Js} \\ m_{e}=9.1 \times 10^{-31} \mathrm{~kg} \\ e=1.6 \times 10^{-19} \mathrm{C}^{2} \\ g_{0}=8.85 \times 10^{-12} \mathrm{C}^{2} \mathrm{~N}^{-1} \mathrm{~m}^{-2} \end{array} a) Calculate the radius, r,

of the Bohr orbit for an electron in-the fifth energy level of the Helium ion (He+). Express you answer in terms of the standard SI units for the quantity. If you don't get this in 2 tries, you can get a hint.