9th Class Science Structure of the Atom

  • question_answer 56)
      Why did Rutherford select a gold foil in his ray scattering experiment?

    Answer:

      Gold is a heavy metal with high mass number. A light metal cannot be used because on being hit by fast moving a-particle, the atom of light metal will be simply pushed forward and no scattering can occur. Moreover, gold is the best malleable metal. A very thin foil ( »1000 atoms thick) can be made from gold to get the clear observations.


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