What does shielding effect mean in chemistry?

1 Answer
Write your answer here...
Start with a one sentence answer
Then teach the underlying concepts
Don't copy without citing sources


Write a one sentence answer...



Explain in detail...


I want someone to double check my answer

Describe your changes (optional) 200

Mar 6, 2017




In a multi electron atom, the electrons of the valence shell(outermost shell) are attracted towards the nucleus and also these electrons are repelled by the electrons present in the inner shells.

On account of this, the actual force of attraction between the nucleus and the valency electrons is somewhat decreased by the repulsive forces acting in opposite direction.

This 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 screening effect or shielding effect.

The magnitude of the screening effect depends upon the number of inner electrons ,i.e., higher the number of inner electrons, greater shall be the value of the screening effect.

Was this helpful? Let the contributor know!
Impact of this question
Answer impact map
403 views around the world
You can reuse this answer
Creative Commons License