Which of the following is NOT an inner transi | vedclass

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(A) Inner transition elements consist of the lanthanoids ($Z = 58$ to $71$) and the actinoids ($Z = 90$ to $103$).$(1)$ $Ac$ $(Z = 89)$ is a transitio

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$Rf$

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(A) Inner transition elements consist of the lanthanoids ($Z = 58$ to $71$) and the actinoids ($Z = 90$ to $103$).$(1)$ $Ac$ $(Z = 89)$ is a transition element (d-block).$(2)$ $Lu$ $(Z = 71)$ is the last element of the lanthanoid series.$(3)$ $Ho$ $(Z = 67)$ is a lanthanoid.$(4)$ $Rf$ $(Z = 104)$ is a transition element (d-block) belonging to group $4$.Therefore, $Rf$ is not an inner transition element.

Which of the following is $NOT$ an inner transition element?

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