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J.J. Thomson discovered the electron and proposed the plum-pudding model for the atom.
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How did J.J. Thomson's discovery affect the model of the atom?
J.J. Thomson is credited with the discovery of the electron in about 1904. He envisioned negatively charged "corpuscles" floating in a positively charged cloud, just like plums in a plum pudding. This was the "plum pudding" model of the atom, and it lasted until Geiger and Marsden conducted their gold foil experiment in about 1909.
What did Ernest Rutherford's experiment prove?
We should never say that an experiment has proven something. The Rutherford gold foil experiment led to the hypothesis that an atom's positive charge is concentrated in an incredibly small space at the atom's center.
Who are the discovery of these 3 subatomic particles?
Particles in the atom: Neutron: James Chadwick, 1932 Electron: J. J. Thomson, 1897 Proton: Ernest Rutherford, 1919
How has john daltons theories change our understanding of the atom?
ask jimmy lyons
What was the year John Dalton submitted his model of the atom?
The atomic theory of John Dalton is from 1801-1802.
Who formulated the blueberry muffin model of an atom?
Joseph John Thomson or (JJ Thomson)
Who provided the evidence that atom contains subatomic particle?
It was J. J. Thomson (Joseph John Thomson)
When was the Jj.Thompson model discovered?
Joseph John Thomson proposed his plum pudding model Of atom in the year of 1904.
Who were the scientists that were responsible for creating the atom model?
the scientist behind the concept of the atom are joseph john thomson,goldstein, and james chadwick!
What are the postulates of Joseph J Thomson?
Type your answer here... thomson model of an atom failed to explai that how the posiyive and negative charges were arrangedin an atom so close to each other
Who are the scientists that discovered the atom?
There were four scientists that discovered the atom. These scientist were John Dalton, William Crooke, J.J. Thomson and Ernest RuthThere were four scientists that discovered the atom. These scientist were John Dalton, William Crooke, J.J. Thomson and Ernest Rutherford.
Who discovered the electrons?
J. J. Thomson
In his proposed model of the atom J.J. Thomson imagined the atom contained .?
Thomson is responsible for discovering that an atom contains electrons.
Who are the founders of subatomic particles?
For the particles in the atom: Joseph Thomson, Ernest Rutherford, James Chadwick and many other precursors, contributors or collaborators.
What did John Thompson discover?
J.J Thomson discovered Electrons which is the negatively charged sub-atomic particle of an atom
Who invented the present atom modle?
John Dalton was the one who invented atom model. Thomson, Rutherford, Bohr and de Broglie also helped him build it.
Why was Dalton's model of the atom changed after Thomson's experiment?
John Dalton's atomic theory indicated that atoms were indivisible spheres. When JJ Thomson did his work with cathode ray tubes, he discovered that atoms contain electrons, which meant that the atom is not indivisible, that there are smaller particles within.
