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  • Rutherford’s ‘alpha particles scattering experiment’ resulted in to discovery of (a) Electron (b) Proton (c) Nucleus in the atom (d) Atomic mass

Rutherford’s ‘alpha (\alpha ) particles scattering experiment’ resulted in to discovery of

(a) Electron

(b) Proton

(c) Nucleus in the atom

(d) Atomic mass

Answers (1)

Answer: C

Rutherford's alpha particle scattering experiment changed the way we think of atoms.

Before the experiment the best model of the atom was known as the Thomson or "plum pudding" model. Rutherford directed beams of alpha particles (which are the nuclei of helium atoms and hence positively charged) at thin gold foil to test this model and noted how the alpha particles scattered from the foil. In this model the positive material is concentrated in a small but massive (lot of mass - not size) region called the nucleus. Rutherford’s ‘alpha (a) particles scattering experiment’ resulted in to discovery of Nucleus in the atom.

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