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The diamagnetism of an atom arises due to

The diamagnetism of an atom arises due to Correct Answer orbital motion of electrons

Concept:

Diamagnetic materials 

  • Diamagnetic materials are those in which the individual atoms do not possess any permanent magnetic dipole moments.
  • The atoms of such material however acquire an induced dipole moment when they are placed in an external magnetic field. 
  • Diamagnetic materials repeal the magnetic field weakly, results from the orbital motion of electrons. 

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  • Each circulating electrons act as a current loop which produces a magnetic field.
  • Two electrons travel in each orbit and are in opposite directions.
  • The magnetic moment produced by each electron of the orbit will cancel. that's why diamagnetic materials have no residual magnetization. 

Explanation:

  • The presence of an external magnetic field affects the orbital motion of the electrons in an atom in such a  way that the atom generates a magnetic field that opposes the external field. This is referred to as diamagnetism.

So, diamagnetism arises due to the orbital motion of electrons. 

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