MDCAT Chemistry MCQ #908

In a hydrogen atom, which transition emits the shortest wavelength photon?

MDCAT Chemistry MCQ #908

  1. Question 1

    Q1. In a hydrogen atom, which transition emits the shortest wavelength photon?

    • A) n=5 to n=4
    • B) n=3 to n=2
    • C) n=2 to n=1
    • D) n=4 to n=3

    Answer: n=2 to n=1

    Explanation: Larger energy gaps (lower to higher n) produce shorter wavelengths. Transition n=2→1 has the largest energy change.