|(a) Electronic configuration||The actinoides invove the filling of||The lanthanoides involve the gradual filling of . 1|
|(b) Oxidation states||Actinoides show oxidation state such as +3 but they also show +2, +4,+5,+6 oxidation state, i.e., Uranium.||Lanthanoides show mainly +3 oxidation state except in few cases where it is +2 and +4. 1|
|(c) Chemical reactivity||(i)They do not form complexes easily. (ii) They do not form oxacation . (iii) Their compounds are less basic. (iv) They are non- radioactive. (v) Their magnetic properties can be easily explained.||(i) They have much greater tendency to form complexes. (ii) They form oxacations such as . (iii) Their compounds are more basic. (iv) They are radioactive. (v) their magnetic properties cannot be easily explained.|
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