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Question
What are the limitations of J.J. Thomson’s model of the atom?
Short Answer
Solution
The limitations of Thomson's model are described below:
- Thomson's concept of an atom believes an atom to be a sphere with a uniform positive charge. Later studies, particularly Rutherford's α-particle scattering experiment, demonstrated that an atom contains a positively charged 'core' at its centre.
- Thomson's atomic model assumes that an atom's mass is equally distributed. Rutherford's experiment demonstrated that an atom's mass is localized into its core.
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Advantage and Limitations of Thomson’s Atomic Model
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RELATED QUESTIONS
In the Thomson’s model of atom, which of the following statments are correct?
- the mass of the atom is assumed to be uniformaly distributed over the atom
- the positive charge is assumed to be uniformaly distributed over the atom
- the electrons are uniformaly distributed in the positively charged sphere
- the electrons attract each other to stabilise the atom
What are the limitations of Thomson’s model of an atom?
Write any two advantages of Dalton’s atomic theory.
Write any two limitations of Dalton’s atomic theory.
