Which of the following statements is correct?

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(D) Iron ($Fe$,atomic number $26$) has the electronic configuration $[Ar] 3d^6 4s^2$.It belongs to the $d$-block,specifically the first transition ser

Vedclass · Accepted Answer

Iron belongs to group $VIII$ of the periodic table.

Vedclass · Answer

(D) Iron ($Fe$,atomic number $26$) has the electronic configuration $[Ar] 3d^6 4s^2$.It belongs to the $d$-block,specifically the first transition series ($3d$ series).In the long form of the periodic table,it is placed in group $8$.Historically,in the Mendeleev periodic table and some older classifications,it was categorized under group $VIII$ (or $VIII B$ in some conventions).Therefore,option $(d)$ is the correct statement among the choices provided.

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