Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
1st Edition
ISBN: 9780078945830
Author: Charles William McLaughlin, Marilyn Thompson, Dinah Zike
Publisher: Glencoe Mcgraw-Hill
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Chapter 18.3, Problem 14PP
To determine

The formula for potassium sulfide.

Expert Solution & Answer
Check Mark

Answer to Problem 14PP

The formula for potassium sulfur is K2S .

Explanation of Solution

Given:

The compound ispotassium sulfide.

Calculation:

Potassium sulfide consists of two elements that means potassium and sulfur. Potassium belongs to group 1 and it has 1 electron in the outermost shell. Sulfur belongs to the group of 16 and it has 6 electrons in the outermost shell.

Potassium loses its outermost electron to attain noble gas configuration and oxygen needs 2 electrons to attain noble gas configuration. The electronic configuration of potassium is 2.8.8.1 and sulfur is 2.8.6. The charge of potassium is +1 and sulfur is -2.

Cross multiply the charges and the formula for potassium sulfur is obtained as K2S .

Conclusion:

Thus, the formula for potassium sulfur is K2S .

Chapter 18 Solutions

Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)

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