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What is called lanthanide contraction?

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.

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In this manner, what is lanthanide contraction and what causes it?

The Lanthanide Contraction is caused by a poor shielding effect of the 4f electrons. Gd because as atomic number increases, the atomic radius decreases. Yb because it has a larger atomic number. Because the elements in Row 3 have 4f electrons. This greater nuclear charge has a greater pull on the electrons.

what is lanthanide contraction Quora? Lanthanide contraction is the greater than expected decrease in the ionic radii of the elements in the lanthanide series from atomic number 57 to 71. This results in smaller than otherwise expected ionic radii for the subsequent elements.

Thereof, what is meant by Lanthanoid and Actinoid contraction?

Lanthanoid Contraction: The steady decrease in the atomic and ionic radii of the transition metals as the atomic number increases. Actinoid Contraction: The gradual decrease in the ionic radii with the increase in atomic no. is called actinoid contraction.

What is Lanthanoid contraction What are the consequences of lanthanoid contraction?

The decrease in size of element due to poor shielding effect in f-series is called lathanoids contraction. The two consequences are 1)atomic size 2)ionisation energy.

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