Last element of lanthanide series is:

In modern periodic table let, a=Group number of a hypothetical element having atomic number 120 ,b=Period number of the element Pd,c= Atomic number of last element of lanthanide series, Find (a+b+c)

The common oxidation state of the elements of lanthanide series is

Ce is the first element of lanthanide series. What is the most suitable E.C. of Ce^(3+) ?

Lanthanum is the first element of the lanthanide series has

Which of the following elements of lanthanide series have highest tendency to show +2 oxidation state?