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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?

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The size of the nucleus cannot be determined for the hydrogen atom. The nucleus of hydrogen atom is a proton. The mass of proton is `1.67 xx 10^(-27)` kg, whereas the mass of an incident alpha particle is `6.64 xx 10^(-27)` kg. Since the alpha particle (scattering particle) is much massive than the target nuclei (proton), the alpha particle won.t be able to bounce back in even head-on collision. Thus, there would be no large angle scattering.
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MODERN PUBLICATION-ATOMS -Ncert File
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