Question

explain the rutherford's gold foil experiment with the help of diagram?

Answer 1

In Rutherford experiment, fast moving alpha particle were made to fall on thin gold foil.

• This gold foil was about 1000 atoms thick.

• Alpha Particles are doubly charged Helium ions.

The following observations were made:

■ Most of the fast moving alpha particle passed straight through the gold foil.

■ Some of the fast moving alpha particle were deflected by making small angles.

■ Surprisingly one out of every 12000 particles appeared to be rebound.


Rutherford concluded from the alpha particle scattering experiment that :

• Most of the space inside the atom is empty because most of the fast moving alpha particle passed straight through the gold foil without getting deflected.

• Few of the fast moving alpha particle were deflected indicating the presence of a positive body inside the atom.

• A very small fraction of the alpha particle got renounced indicating that all the positive charge and mass is concentrated in a small volume within the atom.


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Answer 2

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