6 public questions tagged with this topic.
+3 is the predominant oxidation state for lanthanoids due to the stability of Ln 3+ ions.
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Oxidation States and Colour and Magnetic Properties of d-Block
All lanthanoids show the +3 oxidation state, though some may also exhibit +2 or +4 states.
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Oxidation States and Colour and Magnetic Properties of d-Block
Europium (Eu) shows +2 oxidation state due to the stability of half-filled 4f 7 configuration, along with the common +3 state.
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Oxidation States and Colour and Magnetic Properties of d-Block
Cerium (Ce) shows +4 state to achieve stable 4f 0 configuration.
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Actinoids and Comparison of Lanthanoids and Actinoids
Cerium (Ce) shows +4 state to achieve stable 4f 0 configuration (like Xenon).
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Actinoids and Comparison of Lanthanoids and Actinoids
Eu 2+ (Europium) has a stable half-filled f 7 configuration.
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Actinoids and Comparison of Lanthanoids and Actinoids
