Define Screening effect
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The outer electron experiences two opposing forces-
1.Force of attraction from nucleus.
2.Force of repulsion from inner electrons.
The decrease in the force of attraction exerted by the nucleus on the valency electrons due to the presence of electrons in the inner shells, is called the screening effect or shielding effect.
The screening effect increases if the number of electrons in the inner shells between the nucleus and the outermost electrons increases.
Order of screening effect-
s-orbital>p-orbital>d-orbital>f-orbital.
The outer electron experiences two opposing forces-
1.Force of attraction from nucleus.
2.Force of repulsion from inner electrons.
The decrease in the force of attraction exerted by the nucleus on the valency electrons due to the presence of electrons in the inner shells, is called the screening effect or shielding effect.
The screening effect increases if the number of electrons in the inner shells between the nucleus and the outermost electrons increases.
Order of screening effect-
s-orbital>p-orbital>d-orbital>f-orbital.
smartyAnushka:
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Answered by
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A more straightforward definition however would be the shielding effect or screening effect is the loss in attraction between higher valence electrons and the nucleus due to the shielding caused by lower valence electrons.
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