Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The element with electronic configuration [ Xe ] 4 f ¹⁴ 5 d ¹⁰ 6 s ^2 6 p ^3 is a representative element. Reason (R): Representative elements are characterized by the presence of completely filled inner d and f subshells. In the light of the above statements, choose the most appropriate answer from

Step-by-step solution

Assertion (A) is true: The given electronic configuration [ Xe ] 4 f ¹⁴ 5 d ¹⁰ 6 s ^2 6 p ^3 shows that the last electron enters the p-orbital of the outermost shell (6p). Elements belonging to the s-block and p-block are collectively known as representative (or main group) elements. Thus, it is a representative element. Reason (R) is false: Representative elements are defined by the filling of their outermost s or p subshells. They are not defined or characterized by completely filled inner d and f subshells. In f