Identify the incorrect statement among the fo | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The regular decrease in the radii of lanthanide ions from $La^{3+}$ to $Lu^{3+}$ is known as lanthanide contraction. It is due to the poor shieldi

Vedclass · Accepted Answer

As a result of lanthanoid contraction,the properties of $4d$ series of the transition elements have no similarities with the $5d$ series of elements.

Vedclass · Answer

(B) The regular decrease in the radii of lanthanide ions from $La^{3+}$ to $Lu^{3+}$ is known as lanthanide contraction. It is due to the poor shielding effect of $4f$ electrons,which allows the increased nuclear charge to pull the electrons closer to the nucleus. As a result of lanthanide contraction,the atomic radii of elements of the $4d$ and $5d$ series become very similar,leading to similarities in their chemical properties. Therefore,the statement that $4d$ and $5d$ series have no similarities is incorrect.

Identify the incorrect statement among the following.

Similar Questions

Which of the following trivalent ions has the largest atomic radius in the lanthanide series?

More number of oxidation states are exhibited by the actinoids than by the lanthanoids. The main reason for this is

The lanthanide contraction is responsible for the fact that

Larger number of oxidation states are exhibited by the actinoids than those by the lanthanoids,the main reason being

The number of elements from the following that do not belong to lanthanoids is:
$Eu, Cm, Er, Tb, Yb$ and $Lu$

Vedclass Test Series

Exam Paper Generator

Online Exam Module