Q. 5. Compare all the proposed models of an atom given in this chapter.
Comparison of different proposed Model:
Feature
|
Thomson's Model | Rutherford's Model | Bohr's Model |
Positive Charge | The Positive charge is distributed in Sphere | The positive charge is concentrated at the core of the atom, which is called the nucleus |
The positive charge is present in the core of the atom, called nucleus. |
Negative Charge | The electrons are embedded in the positively charged sphere of an atom, like the seeds in a watermelon. | The nucleus is surrounded by electrons, and the electrons and the nucleus are held together by the electrostatic force of attraction |
The electrons move in discrete orbits, and each orbit is associated with a definite amount of energy. |
Limitation | This model could not explain the results of an alpha particle scattering experiment | This model could not explain the stability of the atom. | This model perfectly explains the stability of an atom |
Diagrammatic representation |