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f-block elements are called inner transition elements because:

Option: 1

The last electron enters into the f-orbital penultimate shell 


Option: 2

The last electron enters into the f-orbital of anti-penultimate shell 


Option: 3

They are taken out of transition element 


Option: 4

They have properties similar to transition elements 


Answers (1)

best_answer

As we have learned

f -Block elements -

The two row of elements at the bottom of the periodic table called the lanthanoids 

_{58}Ce^{-}\ _{71}Lu\:\:\:and \:\:\:actinoids\:\:\:90^{Th\;-}\103^{Lr}

-

In f-block elements the last electron enters into the f-orbital of anti penultimate shell. 

Therefore, Option(2) is correct

 

Posted by

Irshad Anwar

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