Chapter 4, Problem 70E

Interpretation Introduction

Interpretation: A row 5 transition element is to be identified from the given elements.

Concept Introduction:

Transition elements are the elements in which the last electrons enter in $d\text{ block}$.

Row 5 transition elements are those elements in which last electron enter in $5d$ orbital.

Number of rows or period number of an element is determined by the shell in which last electron of an element enters.