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What evidence did Thomson have that his glowing beam contained negative particles?
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∙ 7y ago
The cathodic rays beam was deflected by the atomic nucleus.
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∙ 7y ago
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The first scientist to show that atoms emit tiny negative particles was?
ha, i have this same question on my semester exam review. im almost positive is J.J. Thomson
What findings led JJ Thomson to infer that particles are smaller than atoms do exist?
Particles are smaller
How did Thomson know that atoms must contain particles with positive charges?
He knew that in a vacuum tube metals can be made to emit streams of negative charge which were then called cathode rays. If atoms are neutral and can produce negative charge, there must be positive charge there too.
Who discovered that there are small negatively charged particles inside an atom?
J.j thomson
Who discovered that atoms have negative electric charge?
There were several scientists that discovered that atoms contained electric charges. One of the first to look at their charges more closely was J.J. Thomson.
What evidence did Thomson that his glowing beam contained negative particles?
The cathodic rays beam was deflected by the atomic nucleus.
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.
How did the Thomson's experiment change Dalton's atomic model?
Thomson discovered that the atom contained smaller particles called electrons
What evidence supported thomsons hypothesis that the negative particles he observed 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.
Who first determined that atoms contained even smaller particles?
Thomson, which is considered as the discoverer of electrons.
How did Thomson help the understanding of atom?
He discovered that the atom contained smaller particles called electrons.
How did Thomson help our understanding of the atom?
He discovered that the atom contained smaller particles called electrons.
Why do you think Thomson hypothesized that electrons must come from inside an atom?
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.
How is Thomson's model of the atom different from Dalton's model of the atom?
Dalton described atoms as solid spheres. Thomson discovered the the atom also contained negatively charged particles called electrons distributed in such a way that the atom had no charge.
The first scientist to show that atoms emit tiny negative particles was?
ha, i have this same question on my semester exam review. im almost positive is J.J. Thomson
. J. J. Thomson and experiments provided evidence that an atom .?
a cathode ray
What observation did Thomson make to suggest that an electron has a negative electric charge?
The deflection of cathodic rays was the source of inspiration for Thomson.
