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Nuclear Radius

Q3. Nuclear radii can be determined by observing the diffraction of high energy electrons, as shown in the diagram.

(a) On the axes below, sketch a graph of the results expected from such an electron diffraction experiment.

(2 marks)

(b) State why high energy electrons are used in determining nuclear size.

(1 mark)

(c) Electron diffraction experiments have been performed on a range of different nuclei to give information about nuclear density and average separation of particles in the nucleus. Give the main conclusion in each case.

(2 marks)

(d) Sketch a graph of the relationship between the radius of a nucleus and its nucleon number.

(1 mark)

(e) Given that the radius of the nucleus is 3.04 × 10–15m, calculate the radius of the nucleus.

(3 marks)

(Total 9 marks)