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6 marksModels of the Atom

CSEC Physics · May/June 2012 · Paper 2 · Question 4(a)

Experiments into the fundamental nature of matter are being carried out at particle accelerator facilities. A hundred years ago, Geiger and Marsden performed the now famous gold – foil experiment at the suggestion of Rutherford.

Describe this experiment and explain how it established the nuclear structure of the atom.

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Other parts of this question

  1. 4(b)(i)Rewrite and complete the nuclear equation for this process.[2 marks]
  2. 4(b)(ii)Calculate the energy released in the nuclear reaction in 4 (b)(i). State your answer in Joules. [ c = 3.0 x 10⁸ m s⁻¹][7 marks]

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