Given ions that are isoelectronic with a noble gas are to be identified. Concept introduction: Elements of the same group have a tendency to gain or lose electrons, so that they can achieve the same number of electrons as that of nearest noble gas. High ionization energies and low electron affinities are characteristics of noble gases that make them almost completely unreactive. All noble gases fall in group 8 A . Species that have identical electronic configurations are called isoelectronic species.

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Chapter 7.5, Problem 1CP

Interpretation Introduction

Interpretation:

Given ions that are isoelectronic with a noble gas are to be identified.

Concept introduction:

Elements of the same group have a tendency to gain or lose electrons, so that they can achieve the same number of electrons as that of nearest noble gas.

High ionization energies and low electron affinities are characteristics of noble gases that make them almost completely unreactive.

All noble gases fall in group 8A.

Species that have identical electronic configurations are called isoelectronic species.

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