Atomic Structure: Practice Problem & Solution

Solution Explained:

To solve this problem, we apply the core principles of Atomic Structure. Understanding the underlying formula is key to arriving at the correct answer below:

Frequency $\nu \propto \Delta E$. Emission occurs when transitioning from a higher to a lower energy state. The energy difference between $n=2$ and $n=1$ ($10.2 eV$) is the largest among the given emission transitions.