CII Certificate In Insurance - Insurance Claims Handling Process (IF4) Practice Test

What did J. J. Thomson's cathode-ray experiments demonstrate?

Cathode rays contain negatively charged particles that are components of atoms. Atoms contain a tiny positively charged nucleus. Neutrons have nearly the same mass as protons. Electrons can occupy only integer principal energy levels.

Correct Answer:

Cathode rays contain negatively charged particles that are components of atoms.

Explanation:

Thomson showed that cathode rays were streams of negatively charged particles, later called electrons, establishing that atoms are divisible.

Access more questions from this quiz

Continue to CII Certificate in Insurance - Insurance Claims Handling Process (IF4) Practice Test for more practice questions and the full quiz experience.

Access More Questions