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Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692

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BuyFindarrow_forward

Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692
Chapter 5, Problem 5.1YT
Textbook Problem
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Drawing Lewis Structures for Ionic Compounds

Draw a Lewis structure for SrCl 2 .

Interpretation Introduction

Interpretation:

A Lewis structure for SrCl2 is to be drawn.

Concept introduction:

The Lewis structures of elements are combined to form Lewis structures of compounds.

The dots (which represent the electrons) are moved from the Lewis structure of metal to the Lewis structure of the nonmetal.

A chemical bond in Lewis model includes the sharing or transfer of valence electrons to acquire a stable configuration (octet) for the bonding atoms.

The metal becomes a cation and the nonmetal becomes an anion.

Answer to Problem 5.1YT

Solution:

Chemistry In Focus, Chapter 5, Problem 5.1YT , additional homework tip  1

Explanation of Solution

First draw the Lewis structure of strontium (Sr) and chlorine (Cl) by drawing two dots around the symbol of strontium and 7 electrons around the oxygen atom as follows:

Chemistry In Focus, Chapter 5, Problem 5.1YT , additional homework tip  2

Here, strontium must lose its 2 electrons (to attain octet) while chlorine needs one electrons to complete its octet. Therefore, two Cl atoms are needed for every Sr atom. Hence, the Lewis structure for SrCl2 is as follows:

Chemistry In Focus, Chapter 5, Problem 5.1YT , additional homework tip  3

Conclusion

The Lewis structure for SrCl2 has been drawn as shown below:

Chemistry In Focus, Chapter 5, Problem 5.1YT , additional homework tip  4

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Chemistry In Focus
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