Question

What is lanthanide contraction?

Answer 1

$<b>●•••••••☆Hello User☆•••••••● 《《Here is your answer》》 <hr size = 3 width = 300 color = #000000 ><font color = #000000> The lanthanide contraction is the greater-than-expected decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, which results in smaller than otherwise expected ionic radii for the subsequent elements starting with 72, hafnium.  </font> <hr size = 3 width = 300 color = #000000 > ●••••••☆Brainly Star☆••••••●</big></b>$

Answer 2

$\huge\star\mathfrak\orange{{HEY MATE...!!}}$

❤.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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