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How could an alpha particle pass straight through the metal foil and strike the center of the phosphor screen on the other side without scattering at all?
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How could an alpha particle pass straight through the metal foil and strike the center of the phosphor screen on the other side without scattering at all?

User MarkusM
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It was due to the metal foil in which the alpha particles can't even pass through. This experiment conducted by Rutherford led to the discovery of protons.
User Shahin
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