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What evidence convinced Thomson that cathode rays consist of negatively charged particles?
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∙ 10y ago
In a series of experiments in the 1890's, J.J.Thompson showed that cathode rays, or electrons, are deflected by an electric field, they are bent by a magnetic field, and that their charge to mass ratio is about 1/2000th of that of the proton. Light does not have any of these properties.
Wiki User
∙ 14y ago
Wiki User
∙ 9y agoJoseph John Thomson was an English physicist who is credited to have discovered electrons. In his experiments with a cathode ray tube, he measure the mass to charge ratio of the cathode rays.
Wiki User
∙ 10y agoHe was experimenting with gas discharge tubes.
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∙ 10y agoIt demonstrated the presence of Cathode/X-Rays experimentally.
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∙ 13y agocause they shine brighter .. (:
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∙ 13y agoCathode rays are negatives charges
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∙ 10y agosdfa
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What J J Thomson was famous for?
he was a British scientists that discovered negatively charged particles, electrons, inside the atom. he proposed a possible structure of the atom (atomic model) called the plum pudding. you can google some images
When Thomson held a positively charged plate near the cathode ray the beam bent toward the plate What conclusion can be drawn from this observation?
The cathode "ray' must have been made up of negatively charged particles, now called electrons.
What did JJ Thomson's cathode-ray tube experiment show?
Thompson observed that these rays are negatively electrically charged.
Who discovered the subatomic particle?
Different subatomic particles were discovered at different times.
Describe the discovery that demonstrate for the first time that atoms are not the smallest particles of matter?
The discovery of the subatomic particles demonstrated for the first time that atoms are not the smallest particles of matter. Electron was the first subatomic particle discovered by J.J. Thomson.
Who invented the negatively charged particle electron?
J.J. Thomson discovered the negatively charged particles, electrons in 1897.
Who discovered small negatively charged particles inside an atom?
J.J Thomson
Who discovered that there are small negatively charged particles inside an atom?
J.j thomson
Who Discovered that atoms contain negatively charged particles called electrons?
In 1897, a British scientis named J.J. Thomson.
What evidence convinced J.J Thomson that an atom consist of more than electrons?
The evidence for JJ Thomson was that the plum pudding model could not predict why atoms absorbed and emitted spectral lines.
What evidence supported Thomson's hypothesis that negative particles he observed came from inside atoms.?
Thomson had two pieces of evidence: 1- No matter what metal he used for the disk, the particles produced were indentical. 2- The particles had about 1/2000 the mass of a hydrogen, the lightest atom. These experiments provided the first evidence that atoms are made of even smaller particles.
Why did J Thomson reason that electrons must be a part of the atoms of all elements?
Cathode rays are negatively-charged particles.
Which scientist discovered that cathode rays are made up of negatively charged particles?
English Physicist J.J. Thomson (1856-1940)
How did JJ Thomson know that the particles in the cathode-ray tube were negatively charged?
They are found to be deflected by electric and magnetic field in the specific direction in which a negatively charged particle would get deflected.
What evedence convinced JJ Thomson that an atom consists of more than electrons?
The evidence for JJ Thomson was that the plum pudding model could not predict why atoms absorbed and emitted spectral lines.
What scientist said there are small negatively charged particles inside an atom?
Generally, the theoretical first is given to Richard Laming of England in 1851. More theoretical work and the term "electron" came from G. Johnstone Stoney between 1874 and 1891. The actual "discovery" is given to J. J. Thomson in 1897.
What evidence did Thomson have that his glowing beam contained negative particles?
The cathodic rays beam was deflected by the atomic nucleus.
