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In the gold foil experiment of Geiger an...

In the gold foil experiment of Geiger and Marsden, that paved the way for Rutherford's model of an atom, `~ 1.00%` of the `alpha`-particles were found to deflect at angles `gt 50^(@)`. If one mole of `alpha`-particles were bombarded on the gold foil, compute the number of `alpha`-particles that would deflect at angles less than `50^(@)`.

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