1. The problem statement, all variables and given/known data The emission spectrum of an unknown element contains two lines - one in the visible portion of the spectrum, and the other, ultraviolet. Based on the following figure and what you have learned about Niels Bohr's model of the atom, account for the difference in energy between the lines. The diagram given in the question. 2. Relevant equations None 3. The attempt at a solution The difference in energy between these lines is the result of electrons transitioning from higher orbitals to lower orbitals.The electron transition responsible for ultraviolt light is falling a great distance in the atom creating higer energy and shorter wavelengths. ----------- I'm not sure if this is correct or not, we didn't really learn much about this in the lesson. Is there anything I should research to help me better understand the question? Is there anything I should correct in my answer? Thanks!