1. The problem statement, all variables and given/known data Find the element having the wavelength 440 nm, 580 nm and 545 nm. 2. Relevant equations Balmer Series = 1/wavelength = 1.097e10 m^-1 ((1/4) -1/n^2 ) 3. The attempt at a solution This question cannot be solved mathematically. The question can be solved experimentally but it is preferred to use the internet to find what element that has those mentioned wavelengths.