What leads to the phenomena called effective nuclear charge and s… - Vidyadip

Question

What leads to the phenomena called effective nuclear charge and screening effect in an atom?

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Answer

The periodic trends are explained in the terms of two fundamental factors, namely, attraction of extranuclear electrons towards the nucleus and repulsion between electrons belonging to the same atom.
These attractive and repulsive forces operate simultaneously in an atom.
This results in two interrelated phenomena called effective nuclear charge and screening effect in an atom.

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