Describe rutherford's gold foil experiment with labelled diageam
Answers
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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