Asked by jena
What did J.J. Thomson's cathode-ray tube experiment show?
Responses
An atom is an indivisible sphere.
An atom is an indivisible sphere.
There is a positively charged cloud around the nucleus.
There is a positively charged cloud around the nucleus.
Neutrons are present in the nucleus of the atom.
Neutrons are present in the nucleus of the atom.
There are some negatively charged particles in the atom.
All Answers 1
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There are some negatively charged particles in the atom.
Thomson’s cathode-ray experiments showed that cathode rays were deflected by electric and magnetic fields toward the positive plate, so they are negatively charged particles (electrons) with a measurable charge-to-mass ratio. This disproved the idea that atoms were indivisible solid spheres and led to his “plum pudding” idea; neutrons and the nuclear (positive nucleus) model were discovered later.
Thomson’s cathode-ray experiments showed that cathode rays were deflected by electric and magnetic fields toward the positive plate, so they are negatively charged particles (electrons) with a measurable charge-to-mass ratio. This disproved the idea that atoms were indivisible solid spheres and led to his “plum pudding” idea; neutrons and the nuclear (positive nucleus) model were discovered later.
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