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Question

State Bohr's Postulates and write its drawbacks.

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Solution

Bohr proposed an atomic structure model, describing an atom as a small, positively charged nucleus surrounded by electrons that travel in circular orbits around the positively charged nucleus like planets around the sun in our solar system, with attraction provided by electrostatic forces, popularly known as Bohr’s atomic model.
drawback-
(1)-it does not explain the energy of an atom and it is stability
(2)-
The Bohr atomic model theory made correct predictions for smaller-sized atoms like hydrogen, but poor spectral predictions are obtained when larger atoms are considered.
(3)-It failed to explain the Zeeman effect when the spectral line is split into several components in the presence of a magnetic field.
(4)-It failed to explain the Stark effect when the spectral line gets split up into fine lines in the presence of an electric field.


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