Question

The diagram shows-the energy levels for an electron in a certain atom. Which transition shown represents the emission of a photon with the most energy.

• A. I
• B. II
• C. III
• D. IV

Answer 1

Answer: (C)

III

Answer 2

Emitted energy $\Delta E = \frac{hc}{\lambda}\left( \frac{1}{n_{1}^{2}} - \frac{1}{n_{2}^{2}} \right)$.