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5.1 The nuclear model of the atom

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Question 27

In Rutherford's alpha-particle scattering experiment, α\alphaα-particles were directed at a thin gold foil. Which of the following statements correctly describes an observation from the experiment and the conclusion drawn from it?

A

Most of the α\alphaα-particles passed straight through undeflected, showing that the nucleus has a positive charge.

B

A tiny fraction of the α\alphaα-particles were deflected by large angles, showing that the mass and positive charge of the atom are concentrated in a tiny volume.

C

No α\alphaα-particles were deflected, showing that the plum pudding model was completely correct.

D

All α\alphaα-particles were absorbed by the gold foil, showing that atoms do not contain any empty space.

Markscheme

5.1 The nuclear model of the atom Questions

  1. IGCSE
  2. /Physics
  3. /5.1 The nuclear model of the atom

284 exam-style questions on CIE IGCSE Physics 5.1 The nuclear model of the atom, covering 5.1.1a Structure of the atom and ions, 5.1.1b Alpha-particle scattering, 5.1.2a Composition of the nucleus and isotopes, 5.1.2b Proton number, nucleon number and nuclide notation, and 5.1.2c Nuclear fission and nuclear fusion. Each one has a worked solution and a mark scheme showing where the marks go.

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