Question

Why lanthanides have poor tendency to form complexes?

Answer 1

hey dear user
lanthacides have large size and low densities so they are unable to form complexes

Answer 2

Lanthanides have poor tendencies to form complexes due to the following reasons.

• Metallic elements from  Lanthanum to lutetium having atomic numbers 57 to 71 are called lanthanides.
• Actinides and transition metals are known to form bonds like Ln=O and Ln ≡ N, with oxygen and nitrogen respectively.
• But lanthanides will not form such compounds.
• Lanthanides also do not form stable carbonyl compounds.
• The main reason is that in Ln³⁺ the 4f orbital is greatly shielded by 5s² and 5p⁶ orbitals.
• So the 4f orbital is unable to participate in bonding.
• Also, Ln³⁺ ions are large and have less charge density, this also leads to the poor complex formation of lanthanides.
• #SPJ2
• Why lanthanides do not resemble transition elements in complex formation​

https://brainly.in/question/31730470?msp_srt_exp=5

Why do actinides have a greater tendency to form complexes than lanthanides?

https://brainly.in/question/4804287?msp_srt_exp=5