What are the different oxidation states exhibited by the lanthanoids ?

What are the common oxidation states exhibited by the elements of group 14 and which state is more stable for Pb ?

What are the common oxidation states exhibited by the elements of group 14 ? Comment on their stability on moving down the group.

The different oxdisation state (s) exhibited by oxygen is (are)

Oxidation state exhibited by Cl in HClO is

The main reason for larger number of oxidation states exhibited by the actinoids than the corresponding lanthanoids, is :-

Oxidation state exhibited by Mn in MnO_(2) is

Oxidation state exhibited by Mn in KMnO_(4) is

Oxidation state exhibited by S in H_(2)S is

Larger number of oxidation states are exhibited by the actinoids then those by the lanthanoids, the main reason being

What is the highest oxidation state exhibited by group 17 elements ?