For the following allowed transitions, which photon would have the largest wavelength when an electron 'jumps' from one energy level, characterised by the quantum number n, to another?
A)n = 2 to n = 1
B)n = 3 to n = 2
C)n = 3 to n = 1
D)n = 1 to n = 3
E)n = 4 to n = 1

Question

Quizplus · Accepted Answer

The largest wavelength corresponds to the smallest energy difference. The transition from n = 3 to n = 2 has a smaller energy difference compared to the other transitions listed, resulting in a larger wavelength photon.

For the Following Allowed Transitions, Which Photon Would Have the Largest