An electron undergoes a transition from an initial (ni) to a final (nf ) energy state. the energies of the ni and nf energy states are −2.179×10−18j and −8.720×10−20 j, respectively.. calculate the wavelength (λ) of the light in nanometers (nm) corresponding to the energy change (δe) value of this transition. you can use the following values for your calculations: . planck′s constant (h) = 6.626×10−34 j⋅s. speed of light (c) = 2.998×108 m/s. 1 m = 109 nm