Chapter 5, Problem 75E

Interpretation Introduction

Interpretation:

Among the ions ${\text{K}}^{+}$, ${\text{Sr}}^{2+}$, ${\text{Cl}}^{-}$ and ${\text{Se}}^{2-}$, the ions that are found to be isoelectronic with krypton noble gas are to be identified.

Concept Introduction:

Ionic charge is defined as the charge possesses by an ion that result by the gain or loss of an electron by an atom or a molecule. Metals are electropositive in nature because they loss electrons from their outermost shells. Nonmetals are electronegative in nature because they gain electrons in their outermost shells.

The two different species that possess the same or equal number of electrons are referred to as isoelectronic species.