MDCAT Chemistry MCQ #866

An electron transitions from n=5 to n=2. Which series does this belong to, and what is the spectral region?

MDCAT Chemistry MCQ #866

  1. Question 1

    Q1. An electron transitions from n=5 to n=2. Which series does this belong to, and what is the spectral region?

    • A) Lyman, ultraviolet
    • B) Balmer, visible
    • C) Paschen, infrared
    • D) Brackett, far infrared

    Answer: Balmer, visible

    Explanation: Balmer transitions end at n=2 and emit visible light. Lyman transitions end at n=1 (UV). The most tempting wrong option is A, which mixes transition levels with incorrect series.