For a specific element, photons of how many different energies could be emitted by electrons in the n = 4 level as they return to the n = 1 level?
A) 3
B) 5
C) 2
D) 6

Question

Quizplus · Accepted Answer

Electrons in the n = 4 level can transition to the n = 3, n = 2, or n = 1 levels. From n = 3, they can further transition to n = 2 or n = 1. And from n = 2, they can transition to n = 1. This results in 6 possible transitions: 4 to 3, 4 to 2, 4 to 1, 3 to 2, 3 to 1, and 2 to 1, each emitting photons of different energies.

For a Specific Element, Photons of How Many Different Energies