Concept
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Nuclear Size and Density
![Figure 1](../../../../../../../../../figures.boundless-cdn.com/16897/raw/ld-foil-experiment-results.jpg)
Figure 1
Top: Expected results: alpha particles passing through the plum pudding model of the atom undisturbed.Bottom: Observed results: a small portion of the particles were deflected, indicating a small, concentrated positive charge. Note that the image is not to scale; in reality the nucleus is vastly smaller than the electron shell.
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