Question: Geiger and Marsden used a particles with 7.7 MeV kinetic energy and found that when they were scattered from thin gold foil, the number observed

Geiger and Marsden used a particles with 7.7 MeV kinetic energy and found that when they were scattered from thin gold foil, the number observed to be scattered at all angles agreed with Rutherford’s formula. Use this fact to compute an upper limit on the radius of the gold nucleus.

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