What is the basic difference between the electronic configuration of transition and inner transition elements?

What is the basic difference between the electronic configurations of transition and inner transition elements ?

What is the basic difference between the electronic configurations of transition and inner-transition elements?

What is the difference between the electronic configurations of transition and inner-transition elements

What is the difference in the electronic configuration of transition and inner- transition elements?

What is the difference in the electronic configuration of transition and inner- transition elements?

What are inner transition elements ?

What are inner transition elements ?