Question

Compare Lanthanide and Actinide? (Write any five points).

Answer 1

Comparison between Lanthanides and Actinides :

No	Lanthanides	Actinides
1	Lanthanides show oxidation State of +3 mainly and +2 and +4 in few compounds.	Actinides show +3 oxidation state together with +4, +5 and +6 in all compounds.
2	Tendency to form complex compound is low.	Tendency to form complex compound is more than lanthanides.
3	Lanthanide compounds are less basic than actinide compounds.	Actinide compounds are more basic.
4	These do not form oxo-ions.	Actinides from oxo-ions is $U{O}_2^{+},Np{O}^{+},Pu{O}_2^{+}$, etc.
5	Except promethium all are nonradioactive elements.	All actinides are radioactive.