8. (1 point) An electron makes a trasition from the second en-ergy level to the seventh energy level in a Berylium ion (Be³+).Where \begin{array}{l}

c=3 \times 10^{9} \mathrm{~ms}^{-1} \\

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} \\

\varepsilon_{0}=8.85 \times 10^{-12} \mathrm{C}^{2} \mathrm{~N}^{-1} \mathrm{~m}^{-2}

\end{array} b) Calculate the wavelength of the photon that is ab-sorbed/emmited by the electron. c) Is the photon emmited or absorbed by the electron in the transition?