What is Electron Screening and Its Role in the SWE for Lithium?

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Discussion Overview

The discussion centers around the concept of electron screening, particularly in relation to the Schrödinger Wave Equation (SWE) for lithium. Participants explore the implications of electron screening on charge interactions and the behavior of electrons in atomic structures.

Discussion Character

  • Exploratory, Conceptual clarification, Homework-related

Main Points Raised

  • One participant expresses uncertainty about the meaning of electron screening and its relation to charge, particularly in the context of a homework question regarding lithium.
  • Another participant suggests that electron screening is crucial for determining electron screening energy and mentions its relevance to photon-photon reactions, although specifics are not provided.
  • A third participant challenges the previous comment, asserting that electron screening is the effect of lower shell electrons on higher energy electrons, which perceive a reduced nuclear charge due to the presence of lower energy electrons, and refers to this phenomenon as 'electron shielding.'
  • A later reply acknowledges the clarification provided by the third participant and expresses gratitude for connecting the concept of shielding electrons to electron screening.

Areas of Agreement / Disagreement

There is no consensus on the definitions and implications of electron screening, as participants present differing views and interpretations of the concept.

Contextual Notes

Participants do not fully resolve the definitions of electron screening and shielding, nor do they clarify the specific terms in the SWE for lithium that relate to screening effects.

pzona
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"Electron screening" came up in a homework assignment, and I'm not sure what it means exactly. All I've been able to find on the general topic is that it relates to charge (which I may very well have misunderstood). The homework question is about terms in the SWE for Li which represent screening felt by the 2s electron. Based on what I've tried to learn so far, would charge be one of them?
 
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Hi,

Electron screening plays an important role in order to have unambigious determination of electron screening energy which is very helpful.

Electron screening works with so many terms as it also good for photon- photon reactions.

just go through it so that it is no difficult for you to learn more about Electron screening basics.

Thanks!
 
Please ignore nimmysnv. That is total BS!

Electron screening is the effect of lower shell electrons have upon higher energy electrons. The higher energy electrons 'see' the nucleus through a fog of the lower energy electrons. They 'see' a smaller nuclear charge as a result. It is usually referred to as 'electron shielding'.
http://dl.clackamas.cc.or.us/ch104-06/shielding_electrons.htm
 
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chemisttree,

Thanks for the link and explanation, this is exactly what I was looking for. I'm vaguely familiar with the term shielding electrons, but I didn't make the connection. Thanks again, this is extremely helpful.
 

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