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NCERT Exemplar Solutions Class 9 Science Solutions for Structure of the Atom - Exercise in Chapter 4 - Structure of the Atom

Question 44 Structure of the Atom - Exercise

What were the drawbacks of Rutherford’s model of an atom?

Answer:

Rutherford’s model could not explain the stability of the atom.

Revolving electrons would lose energy as they are the charged particles and due to acceleration, charged particles would radiate energy.

The orbit of the revolving electron will reduce in size, following a spiral path as shown in the figure and ultimately the electron should fall into the nucleus. In other words, the atom should collapse.

Science Exemplar Problems - class 9 chapter Structure of the Atom Question 44 Solution image

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