Question

describe bohr's model of the atom​

Answer 1

Answer:

Explanation:

In atomic physics, the Bohr model depicts an atom as a small, positively charged nucleus surrounded by electrons. These electrons travel in circular orbits around the nucleus—similar in structure to the solar system, except electrostatic forces rather than gravity provide attraction.

Answer 2

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Describe Bohr's model of the atom​.

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According to Bohr's model of an atom :-

• Only certain orbits known as discrete orbits are allowed inside the atom.
• While revolving on orbits electrons does not radiate energy.
• Each orbit is associated with a fixed amount of energy.
• When electrons jump from one orbit to another orbit they gain or loose energy.

Drawbacks of Bohr's model of an atom :-

• It is valid only for one electron atoms. Example - Hydrogen (H).
• Orbits were taken as circular but according to Sommerfiled these are elliptical.  
• Intensity of spectral lies could not be explained.  
• Nucleus was taken as stationary but it also rotates on its own axis.  
• It could not be explained the minute structure in spectrum line.  
• This does not explain the Zeeman effect (splitting up of spectral lines in magnetic filed) and Stark effect (splitting up in electric filed)  
• This does not explain the doublets in the spectrum of some of the atoms.

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Thomson Model of an atom

According to Thomson's model of an atom :-

• An atom is a positively charged sphere in which electrons are embedded.
• The negative and positive charges are equal in magnitude.
• Atom is electrically neutral.

Drawbacks of Thomson's model of an atom :-

• Thomson does not have any experiment or proof to support his model of an atom.
• His Model was not defining the observation of Rutherford's model of an atom.