Assertion : Magnetic moment values of actinid | vedclass

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

Question

(B) The magnetic moment values of actinides are lower than the theoretically predicted values because the $5f$ electrons are less effectively shielded

Vedclass · Accepted Answer

If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.

Vedclass · Answer

(B) The magnetic moment values of actinides are lower than the theoretically predicted values because the $5f$ electrons are less effectively shielded by the outer shells. This leads to the quenching of the orbital contribution to the magnetic moment,making the observed values smaller than those calculated using the spin-only formula. While actinides are paramagnetic,the reason provided does not explain why the magnetic moments are lower than predicted.

Assertion : Magnetic moment values of actinides are lesser than the theoretically predicted values.
Reason : Actinide elements are strongly paramagnetic.

Similar Questions

Rare-earth elements are exhibited by

Which of the following has $6$ unpaired $f-$electrons?

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

The element californium belongs to the family of

How many elements are there in the $4f$ series?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Assertion : Magnetic moment values of actinides are lesser than the theoretically predicted values.Reason : Actinide elements are strongly paramagnetic.