Question

which observation led Rutherford to conclude that nearly all mass of an atom is concentrated within the nucleus

Answer 1

Rutherford conducted golg foil experiment by making positively chargedalpha particles fall on a thin gold foil Its observations are shown below

•Most of alpha particies passed through the gold foil without deviation hi

•some alpha particles deviated in small angles

•only a small number of alpha paricles bounced back

this reason lead Rutherford to conclude

Answer 2

Answer:

A very small fraction of α-particles were deflected by very large angles, indicating that all the positive charge and mass of the gold atom were concentrated in a very small volume within the atom.

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