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5.1.1a Structure of the atom and ions

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Question 4

In the Rutherford alpha-particle scattering experiment, alpha-particles are directed at a thin metal foil. Two key observations are made:

  1. The vast majority of the alpha-particles pass through the foil with negligible deflection.
  2. A tiny fraction of the alpha-particles are deflected through angles greater than 90∘90^\circ90∘.

State the distinct conclusion about the structure of the atom that is drawn from each of these two observations.

[4]
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5.1.1a Structure of the atom and ions Questions

  1. IGCSE
  2. /Physics
  3. /5.1.1a Structure of the atom and ions

114 exam-style questions on CIE IGCSE Physics 5.1.1a Structure of the atom and ions. Each one has a worked solution and a mark scheme showing where the marks go.

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