Answer to Question #28394 in Physical Chemistry for Edward Stark

Question

Describe the different types of transitions that can lead to absorption of visible light. For each, (1) describe the nature of the absorption, i.e. what are the states like and the nature of the transition (this is the most important question), (2) give the typical energies of the absorption, (3) indicate how intense they are, and (4) describe how long lived the excited states are.