6. Chapter: 2 Lesson: 1 Question: Green light of wavelength 516 nm is absorbed by an atomic gas. I. What is the energy difference between the two quantum states involved in the transition? II. If the gas absorbed a mole of photons, what is the total energy that would be absorbed? Hint: The phrase "quantum state" is another way to say energy level What is the relationship needed to find the energy of a single photon? How many photons are a mole of photons? Copyright 2011-2017 The Eberly College of Science 2 of