In Rutherford's Gold Foil Experiment the alpha particles pass straight, But the protons in the gold nucleus must deflect the alpha particles so as to change their direction, yet most particles pass straight. Why?
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hey mate, here is ur answer
it is because nucleus is very small in size so some particles pass straight
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Explanation:Most of the alpha particles pass straight through the gold atom because for the deflection of alpha particle nuclei is responsible but as compared to size of gold atom the size of nucles is ver very less.... So it only deflect a few alpha particle and most of pass straight away
Rahulk644:
But the net charge on the nucleus is in great magnitude because of a lot of number of protons in it, hence it must deflect the alpha particles
Yes u are right but as we know nuclear force is short range force so it didn't deflect all th alpha particle
nuclear force is a short range force, but the electromagnetic force by the protons in the nucleus isn't short range, it must deflect the alpha particles
But if we consider distance (impact parameters) then the alpha particles which has max. Impact parameter must experience least focre or negligible focre so it may pass straight
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