Chapter 5, Problem 13CE

Interpretation Introduction

Interpretation:

The next ion in the isoelectronic series: ${\text{Se}}^{2-}$, ${\text{Br}}^{-}$, $\text{Kr}$, ${\text{Rb}}^{+}$, ${\text{Sr}}^{2+}$ is to be stated

Concept introduction:

The ions or atoms which possess the same electron configuration are known as the isoelectronic species. They have the same number of electrons. The isoelectronic species show similar chemical properties.