Question

Differentiate between lantanoids and actinoids.

Answer 1

LANTHANOIDS :

1. less tendency towards complex formation.
2. except promethium, they are non radioactive.
3. magnetic prop. are easy to explain.
4. does not form oxocations.
5. oxides of lanthanoids are less basic

ACTINOIDS :

1. stronger tendency towards complex formation.
2. all the actinoids are radioactive.
3. magnetic prop. are not easy to explain.
4. forms oxocations like UO+
5. oxides of actinoids are more basic.

Answer 2

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