1. The problem statement, all variables and given/known data The hydrogen spectrum contains a blue line with a wavelength of 434 nm. Photons of blue light are emitted when hydrogen's electron drops from the fifth engery level to a lower energy level. What is the lower energy level? Given Wavelength = 434 nm n1 = 5 n2 = ? R = 1.097 x 10^7 m^-1 (which i am not sure what this means or how to apply it but anyways) 2. Relevant equations 1/wavelength = R [ 1/n2^2 - 1/n1^2] 3. The attempt at a solution 1/434 = (1.097 x 10^7 m^-1) [1/n2^2 - 1/5^2] 1/434 = (1.097 x 10^7 m^-1) [1/n2^2 - 1/25] 0.0023 = (1.097 x 10^7 m^-1) [1/n2^2 - 0.04] 0.0023 / (1.097 x 10^7 m^-1) = [1/n2^2 - 0.04] ((0.0023 / (1.097 x 10^7 m^-1)) +0.04 = 1/n2^2 AND now im totally lost because it doesnt make any sense.. plug those values into your calculator and i get the exaxt same number for n2 as i started with n1 jeez!! SOMEONE HELP!!