Electron A falls from energy level X to energy level Y and releases blue light. Electron B falls from energy level Y to energy level Z and releases red light. Which transition, from X to Y or from Y to Z, has a greater energy difference? Explain your answer and how you arrived at it.

Question

anonymous · Answer

Well, E = hf, where h is Planck's constant. If you want a bigger frequency, you need more energy. As blue light has a higher frequency, it must be the transition from level X to Y which has the greatest energy difference.