What are the limitations of J.J. Thomson's model of the atom?
What are the limitations of Rutherford's model of the atom?please answer in 6 points
Answers
Answer:
1. According to this model, the atom consists of positively charged sphere and the electrons embedded in it. The charges are equal in magnitude but opposite in sign so the atom is neutral.
The limitations of J.J Thomson's model of the atom are:
a) It could not explain the alpha scattering experiment done by Rutherford.
b) There was no experimental evidence of the model proposed by J.J Thomson.
2. Limitations of Rutherford model
a) An atom contains nucleus in it and also electrons revolving . So both should attract each other . But Rutherford explained that the electrostatic attraction is balaanced by centrifugal force allowing electron to revolve .
b) But according to maxwell electromagnetic theory if a charged particle moves in electric or magnetic field of another charged particle it loses energy and falls in to the nucleus within a few milliseconds following a spiral path so an atom should be unstable . But an atom is quite stable .
c) It didn't explain the arrangements of electrons in various shells .
Hope this Answer help you.
Question :-
a. What are the limitations of Rutherford's model of an atom?
b. What are the limitations of J.J. Thomson’s Model of Atom.
Answer :-
a. According to Rutherford’s model of an atom the electrons are revolving in a circular orbit around the nucleus. Any such particle that revolves would undergo acceleration and radiate energy. The revolving electron would lose its energy and finally fall into the nucleus, the atom would be highly unstable. But we know that atoms are quite stable.
b. According to J.J. Thomson’s model of an atom, the electrons are embedded all over in the positively charged spheres. But experiments done by other scientists showed that protons are present only in the centre of the atom and electrons are distributed around it.
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