Question

What is lanthanide contraction what are the consequences of that lanthanide contraction?

Answer 1

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ȯ Shielding and its Effects on Atomic Radius. The Lanthanide Contraction is the result of a poor shielding effect of the 4f electrons. The shielding effect is described as the phenomenon by which the inner-shell electrons shield the outer-shell electrons so they are not effected by nuclear charge.

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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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