MDCAT Chemistry MCQ #941

An electron transitions from n=3 to n=2 in a hydrogen atom. Which process explains the emission of a photon during this step?

MDCAT Chemistry MCQ #941

  1. Question 1

    Q1. An electron transitions from n=3 to n=2 in a hydrogen atom. Which process explains the emission of a photon during this step?

    • A) Absorption of energy to overcome the work function
    • B) Release of energy as the electron moves to a higher energy orbital
    • C) Relaxation of the electron to a lower energy level with energy emission
    • D) Electron spin alignment in the magnetic field of the nucleus

    Answer: Relaxation of the electron to a lower energy level with energy emission

    Explanation: Photon emission occurs when electrons relax to lower energy levels. Option A describes the photoelectric effect, not atomic transitions.