Question

what do you mean by inert pair effect ​

Answer 1

▪Elements towards the bottom of the group have intervining d and f orbitals which has less penetrating and shielding power.

▪The valence electrons experiances increased effective nuclear charge because of this.

▪ Hence the pairs of electrons in the inner orbitals of valence shell will not take part in chemical combination. This is called inert pair effect.

▪ As a result, elements towards bottom of periodic table shows stable oxidation state at oxidation number less than 2 of the group oxidation number.

Answer 2

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❤.INERT PAIR EFFECT :

The reluctance of the outermost 'ns' electron pair to take part in a chemical reaction is called "Inert pair effect".

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