Question

define the term inert pair effect ?​

Answer 1

Explanation:

The inert pair effect is the tendency of the two electrons in the outermost atomic s-orbital to remain unshared in compounds of post-transition metals. ... As a result, the inert pair of ns electrons remains more tightly held by the nucleus and hence participates less in bond formation.

Answer 2

$\huge\mathcal\color{teal} Answer :-$

The inertness of the inner core ns electrons in the participation of chemical bonding is called the inert pair effect. Valence electrons in s orbital penetrate more into the nucleus than p orbitals due to which s-orbitals are held more tightly by the nucleus and have lower tendency in bond formation. A pair of such electrons is called “inert pair”.

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