What among the following is not a limitation of the plum pudding model?

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This model did not explain the existence protons and electrons in the atom.

This model failed to explain the scattering of alpha particles by thin metal foils.

This model had no experimental evidence to support its hypothesis.

This model did not explain the stability of an atom.

answer is D.

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Detailed Solution

The statement, "This model did not explain how protons and electrons exist in the atom." is not a limitation of the plum pudding model.

The plum pudding model was discovered for the understanding of the structure of the atom, and this model was proposed by the scientist J. J. Thomson. Thomson considered that the positive charges, i.e., protons and the negative charges, i.e., electrons, are uniformly distributed throughout the atom.

However, there were a few limitations for this model to be accepted.

One of the limitations was that this model did not explain the stability of an atom.
This model also failed to explain the scattering of alpha particles by thin metal foils.
Finally, this model had no experimental evidence to support its hypothesis.

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