from his experiments, j. j. thomson concluded that\ncathode ray particles can move at very fast…
from his experiments, j. j. thomson concluded that\ncathode ray particles can move at very fast speeds.\ncathode ray particles can be moved by electric current.\natoms contain small positively charged particles that are called protons.\natoms contain small negatively charged particles that are called electrons.
Answer
Brief Explanations:
J. J. Thomson's cathode - ray tube experiments led him to discover electrons. He found that atoms contain small negatively charged particles called electrons. The other statements are not conclusions from his experiments. He did not conclude about protons in his cathode - ray experiments, and while cathode - ray particles can move fast and be affected by electric current, his most significant conclusion was about the existence of electrons.
Answer:
atoms contain small negatively charged particles that are called electrons.