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30. In Rutherford’s experiments, some of the _______________ aimed at gold atoms bounced back, suggesting that a solid mass was at the center of the atom.

Respuesta :

should be 'alpha particles'

Answer:

In Rutherford’s experiments, some of the ____Alpha particles____ aimed at gold atoms bounced back, suggesting that a solid mass was at the center of the atom.

Explanation:

  • In experiment, Rutherford used alpha particles which are nuclei of helium atom.
  • So when these particles were bombard on the gold foil some of them were bounce back. Showing that some other nucleus in the foil repel them.


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