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Question

Foils made of ____ was used in alpha-ray scattering experiment by Rutherford.


  1. silver

  2. gold

  3. aluminum 

  4. iron


Solution

The correct option is B

gold


Gold foil was chosen because gold is the most malleable metal and the foil can be made as thin as 1000 atoms. Foils made of other metals are thicker than the gold foil and so the scattering result may not be exactly the same.

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