How does the shielding effect relate to periodic trends?

1 Answer
May 5, 2015

Shielding effect in an atom is a measure of the reduction in the effective nuclear attraction between the nucleus and the valence electrons.

Shielding effect is caused by the shells(and the electrons in them) that are between the nucleus and the valence shells.

A Period on the periodic table groups together all elements that a particular number of shells, thereby, indicating the shielding effect!

Hence, there is a regular variation(a periodic trend) in the shielding effect from one period to another.