Discuss the experimental results of Geiger-Marsden's $\alpha $ -particle scattering.
A typical graph of the total number of $\alpha$-particles scattered at different angles in a given interval of time is shown in below figure.
The dots in this figure represent the data points and the solid curve is the theoretical prediction based on the assumption that the atom has positively charged nucleus.
Many of the $\alpha$-particles pass through the foil.
It means that they do not suffer any collisions.
Only about $0.14 \%$ of the incident $\alpha$-particles scatter by more than $1^{\circ}$ and about $1$ in $8000$ deflect by more than $90^{\circ}$.
The graph which depicts the results of Rutherform gold foil experiment with $\alpha$ -particales is
$\theta:$ Scattering angle
$\mathrm{Y}:$ Number of scattered $\alpha$ -particles detected
(Plots are schematic and not to scale)
The Rutherford $\alpha$-particle experiment shows that most of the $\alpha$-particles pass through almost unscattered while some are scattered through large angles. What information does it give about the structure of the atom
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