The original question asked for the maximum wavelength of the photon that hydrogen in the excited state ni = 6 can absorb. BUT I know need to know the next smallest wavelength that would work. The energy of the ground state of hydrogen is -13.6 eV, the speed of light is 2.99792 × 108 m/s and Planck's constant is 6.62607 × 10-34 J · s . What would be the next smaller wavelength that would work?