Wiki Page, CHEM 109 General Chemistry I 41650: Lecture 28 Materials

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2020-10-29T13:30:11-07:00

In this lecture you will learn how to draw Lewis structures for covalent and ionic compounds!

The steps involved in the process of drawing Lewis structures for covalent molecules are:

1. Determine the number of valence electrons

2. Draw skeletal structures (atoms are arranged as bonded and connected with single bonds)

3. Add remaining electrons in pairs to outermost atoms first to complete octets

4. Place any remaining electrons in pairs on the central atom(s)

5. Satisfy octets (as needed) by converting one or more lone pairs on into bonding pairs (double and triple bonds)

By the end of this lecture this should all make sense to you and you should be on your way to properly drawing covalent and ionic molecules!

Lecture 28 Materials:

Chapter 8 Slides (Slides1-13)

Practice Problems

Lecture 28 - Attendance/Comprehension Quiz

Lecture Videos:

Practice Problem Answers:

Practice Problem KEY