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Q2- Why alpha particles are taken to do this experiment by Mr. Rutherford? Q3- There is a confusion that an atom of gold foil is taken or a complete atom? I want to say that why the gold foil is considered as an atom in this model? Q4- According to this model Alpha particles are smaller than the atom of gold foil. Is this conclusion is correct? Give reason to this? If it is correct than we also conclude that the discovery of alpha particle is done first than the discovery of the particles inside atom. That means Rutherford was able to see the alpha particles with the help of apparatus but he was not able to see inside the atom(which is bigger than the alpha particles). Q3- According to Rutherford model conclusion “electrons move in a circular orbit.” But sir (in the diagram of his model)no sign of electron is found in bombardment of alpha particles only the sign of positive charge particle that is nucleus is found in it then ,How he recognize the electron is present in it with the help of his model(solar plannatory model? Q4- How with the help of alpha particle bombardment model we know that the electons are moving? It may be remain still(not moving). Q5- Why only Gold foil is taken by Rutherford to do this experiment?

Q2- Why alpha particles are taken to do this experiment by Mr. Rutherford?
Q3- There is a confusion that an atom of gold foil is taken or a complete atom? I want to say that why the gold foil is considered as an atom in this model?
Q4- According to this model Alpha particles are smaller than the atom of gold foil. Is this conclusion is correct? Give reason to this? If it is correct than we also conclude that the discovery of alpha particle is done first than the discovery of the particles inside atom. That means Rutherford was able to see the alpha particles with the help of apparatus but he was not able to see inside the atom(which is bigger than the alpha particles).
Q3- According to Rutherford model conclusion “electrons move in a circular orbit.” But sir (in the diagram of his model)no sign of electron is found in bombardment of alpha particles only the sign of positive charge particle that is nucleus is found in it then ,How he recognize the electron is present in it with the help of his model(solar plannatory model?
Q4- How with the help of alpha particle bombardment model we know that the electons are moving? It may be remain still(not moving).
Q5- Why only Gold foil is taken by Rutherford to do this experiment?

Grade:11

1 Answers

ruchi yadav
askIITians Faculty 27 Points
10 years ago
BecauseGold Foilcan be made very thin, a few atoms wide. Thus it is easier for the beam ofalpha particlesto pass through the foil, rarely deflected by the central nucleus. The deflections were measured by a circular sheet ofzinc sulfide(ZnS)


Thank You
Ruchi
Askiitians Faculty

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