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:

Kinetic energy $K.E. \propto \frac{1}{n^2}$, so it decreases as $n$ increases. Total energy $E = -\frac{13.6}{n^2} eV$ increases (becomes less negative). Since $P.E. = 2E$, potential energy also becomes less negative, meaning it increases.