How Does Electron Screening Affect Charged Particle Scattering in Atoms?

MattLiverpool
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Could anyone give me a couple of sentences to what it is?
 
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why? school work? :)
 
ansgar said:
why? school work? :)

Partly, mainly just for clarification, its not a question I am just doing some revision, didn't think it was suitable for the homework section. Any help?
 
As I understand it, electron screening is merely the fact that the attractive force on the more outer electrons is less because of the repulsion of the inner electrons between them and the nucleus.
 
In scattering charged particles on atomic nuclei, if the distance of closest approach of the charged particle from the nucleus is roughly the distance of the 1S atomic electrons, the atomic electrons prevent the charged particle from seeing the full charge of the nucleus. This shielding the nucleus by the atomic electrons is called screening.

Bob S
 

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