We’re being asked to determine which transition represents the emission of a photon with the largest energy.
Emission is a transition process from a higher energy level to a lower energy level. The energy in a transition depends on the distance between the energy levels: this means the transition with the greatest distance produces the largest energy.
Starting from n = 1, the distance between each energy level gets smaller as shown below:
Which of the following transitions would result in the emission of a photon with the largest energy?
A) from n = 2 to n = 1
B) from n = 4 to n = 1
C) from n = 3 to n = 6
D) from n = 1 to n = 4
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