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ICSE Class 8 Chemistry Question 10 of 23

Atomic Structure — Question 14

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Question

Question 9

What are the observations of the experiment done by Rutherford in order to determine the structure of an atom?

Answer

In his experiment, Rutherford bombarded a thin sheet of gold (of 0.00004 cm thickness) with fast-moving alpha particles in an evacuated chamber. He made the following observations from his experiment:

  1. Most of the alpha particles passed straight through the foil without any deflection from their path.
  2. A small fraction of them were deflected from their original path by small angles.
  3. Only a few particles bounced back.