MDCAT Chemistry MCQ #722

In the production of characteristic X-rays, a K-alpha photon is emitted when an electron transition occurs between which two specific energy levels?

MDCAT Chemistry MCQ #722

  1. Question 1

    Q1. In the production of characteristic X-rays, a K-alpha photon is emitted when an electron transition occurs between which two specific energy levels?

    • A) M-shell to K-shell
    • B) L-shell to M-shell
    • C) K-shell to L-shell
    • D) L-shell to K-shell

    Answer: L-shell to K-shell

    Explanation: K-alpha X-rays occur when an L-shell electron fills a K-shell vacancy; K-beta transitions involve M-shell electrons falling to the K-shell.