EASYMCQ SINGLEJEE Mains ChemistryPhysical ChemistryAtomic StructureIntro

[Manipal 2008] Deflection of a few α-particles back on hitting a thin gold foil shows that

0.Nucleus is heavy

1.Nucleus is small

2.Both: nucleus is heavy and small

3.Electrons create hindrance for α-particles

Explanation

Rutherford's gold foil experiment showed that the nucleus is both small (most α-particles pass through) and very heavy/dense (a few are deflected back).

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