## Chemistry and Chemical Reactivity (9th Edition)

The lowest energy line is in the transition from n=6 to n=5. $\Delta E=-Rhc(1/n_f^2-1/n_i^2)$ $\Delta E=-2.66\times10^{-20}\ J$ For a photon with this energy: $E=h\times\nu$ $\nu=4.02\times10^{13}\ 1/s$ $c=\lambda\times\nu$ $\lambda=7.46\times10^{-6}\ m$