Question

What is lanthanid contraction ? Write it's consequence

Answer 1

Due to poor shielding of 4f subshell electron size of transition elements nearly same called Ln contractions.

Answer 2

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❤.LANTHANIDE CONTRACTION :

The gradual decrease of atomic size from left to right in lanthanides is called "lanthanide contraction".

❤.CONSEQUENCE:

The crystal structure and other properties of these elements become very close and similar.So it become difficult to separate them from a mixture.

Inert pair effect is consequence of Lanthanide contraction.

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