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:

Ionization energy of H atom is \(13.6\text{ eV}\). \(10.6\text{ eV}\). is insufficient to ionize. \(\Delta E_{2-1} = 10.2\text{ eV}\). If 'ejected' means excited to \(n=2\), then (A) is true. (R) is true and explains the excitation.