Question 701
For which Lanthanoids does the text explicitly state that the +4 oxidation state is observed only in oxides (MO₂)?
Question 702
What specific property of Tb⁴⁺ is attributed to its f⁷ electronic configuration?
Question 703
What specific property of Yb²⁺ is attributed to its f¹⁴ electronic configuration?
Question 704
What specific property of Eu²⁺ is attributed to its f⁷ electronic configuration?
Question 705
Which of the following best explains why Ce⁴⁺ has a strong tendency to revert to the Ce³⁺ state?