everyday science MCQ #4389

Nuclear radiation is emitted by those elements whose:

everyday science MCQ #4389

  1. Question 1

    Q1. Nuclear radiation is emitted by those elements whose:

    • A) Molecules are unstable
    • B) Nuclei are stable
    • C) Nuclei are unstable
    • D) Molecules are stable

    Answer: Nuclei are unstable

    Explanation: Radioactive elements have unstable nuclei that spontaneously emit radiation (alpha, beta, or gamma) as they decay toward a more stable configuration.