Why Does D Orbital Electron Screening Effect Fall Behind S & P Electrons?

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Discussion Overview

The discussion centers on the screening effect of d orbital electrons compared to s and p electrons, exploring the reasons behind the differences in their effectiveness in screening nuclear charge. The scope includes conceptual understanding and technical explanations related to atomic structure and electron configuration.

Discussion Character

  • Conceptual clarification
  • Technical explanation

Main Points Raised

  • One participant questions why the screening effect of d orbital electrons is less than that of s and p electrons.
  • Another participant suggests that the screening of nuclear charge is influenced by electron density, which is lower for d orbitals due to their higher angular momentum compared to s and p orbitals.
  • Some participants inquire about the relationship between angular momentum and electron density.
  • A participant states that the defining property of an orbital being s, p, d, or f is related to the distribution of electron density around the nucleus.

Areas of Agreement / Disagreement

The discussion includes questions and differing viewpoints regarding the relationship between angular momentum and electron density, indicating that there is no consensus on this aspect.

Contextual Notes

The discussion does not resolve the relationship between angular momentum and electron density, and the definitions of orbital types may depend on specific interpretations or contexts.

zorro
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Why is the screening effect of d orbital electrons less than that of s and p electrons?
 
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The screening of nuclear charge is due to the electron density which is nearer to the nucleus than the test charge (e.g. the valence electrons). Now, due to the higher angular momentum, the electron density of d-orbitals near the nucleus is substantially lower than for s or p orbitals. Hence less screening.
 
how is angular momentum related to electron density?
 
Abdul Quadeer said:
how is angular momentum related to electron density?

What property defines whether an orbital is s, p, d or f?
 
Its is the distribution of electron density around the nucleus
 

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