Question

inert pair effect..................​

Answer 1

The reluctance of electrons present in s orbitol to take part in a reaction dur to the presence of interviening vompletely filled d and f orbitols

Answer 2

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The term inert pair effect is often used in relation to the increasing stability of oxidation states that are two less than the group valency for the heavier elements of groups 13, 14, 15 and 16. The term "inert pair" was first proposed by Nevil Sidgwick in 1927. The name suggests that the outermost s electrons are more tightly bound to the nucleus in these atoms, and therefore more difficult to ionize or share.

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