Question
Which part of John Dalton's theory was disproved by J.J. Thomson's cathode-ray tube experiments?
A. Atoms are indivisible
B. Atoms can join together
C. Atoms are small
D. Atoms can form new substances
A. Atoms are indivisible
B. Atoms can join together
C. Atoms are small
D. Atoms can form new substances
Answers
GPT-4o mini
The part of John Dalton's theory that was disproved by J.J. Thomson's cathode-ray tube experiments is:
**A. Atoms are indivisible.**
Thomson's experiments showed that atoms could be divided into smaller particles, specifically electrons, which indicated that atoms were not indivisible as Dalton had proposed.
**A. Atoms are indivisible.**
Thomson's experiments showed that atoms could be divided into smaller particles, specifically electrons, which indicated that atoms were not indivisible as Dalton had proposed.