Which of the following elements belongs to th | vedclass

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(C) The first inner transition series is known as the $Lanthanoid$ series,which includes elements from atomic number $58$ $(Ce)$ to $71$ $(Lu)$.$Pr$ $

Vedclass · Accepted Answer

$Pr$

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(C) The first inner transition series is known as the $Lanthanoid$ series,which includes elements from atomic number $58$ $(Ce)$ to $71$ $(Lu)$.$Pr$ $(Praseodymium)$ has an atomic number of $59$,which falls within the range of the $Lanthanoid$ series.$Bk$ $(Berkelium)$,$Pu$ $(Plutonium)$,and $Fm$ $(Fermium)$ belong to the second inner transition series,known as the $Actinoid$ series.Therefore,the correct option is $C$.

Which of the following elements belongs to the first inner transition series?

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