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Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425

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BuyFindarrow_forward

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
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hich noble gas has the same electron configuration as each of the ions in the following compounds?

msp;  a .  calcium bromide ,  CaBr 2 b .  aluminum selenide ,  Al 2 Se 3 c .  strontium oxide ,  SrO d .  potassium sulfide ,  K 2 S

Interpretation Introduction

(a)

Interpretation:

The noble gas atoms that have the same configuration as each of the ions in the given compound are to be predicted.

Concept Introduction:

The distribution of the electrons that exists in the atomic orbital of an atom is collectively known as electron configuration. The description of every electron in an orbital is given by the electron configuration of that atom.

Atoms lose or gain electrons to become stable by attaining nearest noble gas configuration. While doing so, they are converted to their respective ions. The positive ion and the negative ion combine to form their corresponding salt.

Explanation

The salt given is CaBr2. It consists of one cation and one anion.

The cation present in CaBr2 is Ca2+.

The electron configuration of Ca with Z=20 is 1s22s2 2p6 3s23p64s2 .

Calcium present in CaBr2 is in the form of Ca2+ and the electron configuration of the ion is 1s22s2 2p6 3s2 3p6 . This electron configuration corresponds to the electron configuration of argon. Therefore, the ion, Ca2+ present in CaBr2 has a similar electron configuration of argon.

The anion present in CaBr2 is Br

Interpretation Introduction

(b)

Interpretation:

The noble gas atoms that have the same configuration as each of the ions in the given compound are to be predicted.

Concept Introduction:

The distribution of the electrons that exists in the atomic orbital of an atom is collectively known as electron configuration. The description of every electron that is moving freely in an orbital is given by the electron configuration of that atom.

Atoms lose or gain electrons to become stable by attaining nearest noble gas configuration. While doing so, they are converted to their respective ions. The positive ion and the negative ion combine to form their corresponding salt.

Interpretation Introduction

(c)

Interpretation:

The noble gas atoms that have the same configuration as each of the ions in the given compound are to be predicted.

Concept Introduction:

The distribution of the electrons that exists in the atomic orbital of an atom is collectively known as electron configuration. The description of every electron that is moving freely in an orbital is given by the electron configuration of that atom.

Atoms lose or gain electrons to become stable by attaining nearest noble gas configuration. While doing so, they are converted to their respective ions. The positive ion and the negative ion combine to form their corresponding salt.

Interpretation Introduction

(d)

Interpretation:

The noble gas atoms that have the same configuration as each of the ions in the given compound are to be predicted.

Concept Introduction:

The distribution of the electrons that exists in the atomic orbital of an atom is collectively known as electron configuration. The description of every electron that is moving freely in an orbital is given by the electron configuration of that atom.

Atoms lose or gain electrons to become stable by attaining nearest noble gas configuration. While doing so, they are converted to their respective ions. The positive ion and the negative ion combine to form their corresponding salt.

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