The key finding was that the atom's positive charge and most of its mass are concentrated in a tiny volume at the center, causing the rare but significant deflections of the positively charged alpha particles.
Rutherford's alpha-particle ($\alpha$) scattering experiment was responsible for the discovery of which one of the following ?
Asked in UPSC NDA 2 2021 · Topic: Nuclear Physics (Basic properties of nuclei: size, shape, charge, mass, spin, magnetic dipole and electric quadrupole moments.)
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