1. The problem statement, all variables and given/known data In the Bohr model of the hydrogen atom, if the electron is in the second orbit with a radius of 2.12 Å. What is the de Broglie wavelength of the electron? 2. Relevant equations λ = 4h^2ε/me^2 3. The attempt at a solution I found this equation hunting around online and figured out that the constant is 2 times the energy level, but I do not have all of this information. How would I solve this problem?