A. Write a set of four possible quantum numbers for the circled electron. (There could bemore than one correct answer.) (4 points)

n =| =m, =II B. The electron in a hydrogen atom can undergo a transition from n = 6 to n = 1, emitting aphoton with energy 2.11 x 10-18 J. (2 points) i. What is the frequency of this transition? (1 point) ii. How does this transition show that the energy of a photon is quantized? (1 point) C. Why is it impossible for an electron to have the quantum numbers n = 3, | = 0, m, = 1, m, = +\frac{1}{2} ?(2 \text { points })