d and f BLOCK ELEMENTS MCQ Quiz: GKFix - Bridge of Knowledge

Question 676

▼

What is the electronic configuration of Praseodymium (Pr) for its Ln³⁺ ion?

▼

What is the electronic configuration of Cerium (Ce) for its outermost electrons?

▼

What is the electronic configuration of Lanthanum (La) for its outermost electrons?

▼

Which of the following best describes the electronic reason for the stability of the common +3 oxidation state in Lanthanoids?

The Ln³⁺ ions achieve configurations close to the general 4fⁿ pattern, which is relatively stable
The +3 state results in completely filled orbitals
The +3 state results in completely empty orbitals
The +3 state minimizes the total number of electrons

▼

What is the primary difference in the electronic configurations of Sm²⁺ and Sm³⁺ ions?