Seven possible transitions are identified on the energy level diagram in Figure Q29.20. For each, is this

Question:

Seven possible transitions are identified on the energy level diagram in Figure Q29.20. For each, is this an allowed transition? If allowed, is it an emission or an absorption transition, and is the photon infrared, visible, or ultraviolet? If not allowed, why not?

7s 68 5s A = 2.1 m 4s A = 380 nm A = 330 nm 3.s FIGURE Q29.20 5p- 3p Ionization limit A = 500 nm A = 260 nm