Question:
Suppose you are given a chance to repeat the alpha-particle scattering experiment using a thin sheet of solid hydrogen in place of the gold foil. (Hydrogen is a solid at temperatures below 14 K.) What results do you expect?
Answer:
In the alpha-particle scattering experiment using a thin sheet of solid hydrogen in place of the gold foil, then the scattering light will not be large. Because the hydrogen mass (1.6 x 10-27 Kg) is less than the mass of incident alpha particle with mass 6.6 x 10-27 Kg. Thus, the mass of scattering particle is more than the hydrogen. As a result, alpha particle will not back bounce back if we use solid hydrogen is used in the alpha particle scattering experiment.
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