What is the common oxidation state of group IIIA elements ? How does it change down the group ?

What are common oxidation states of group 15 elements?

General oxidation state shown by group 13 elements is

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

What are the two important oxidation states of group 6 elements of the periodic table ?

What is the common name of the elements of group 1?

Comment on the physical state of group 17 elements.

How does the basic character of oxides of group 2 elements vary on moving down the group ?

What is the common name given to the elements of group 2 ?

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

The relative satbility of +1 oxidation state of group 13 elements follow the order :