Introduction to Lewis Structures

44 %
56 %
Information about Introduction to Lewis Structures

Published on February 23, 2014

Author: prunnels



Introduces drawing Lewis Structures

Lewis structures Writing Lewis structures, part 1 CC image courtesy of Hiro Sheridan on Flickr

Lewis Structures Lewis structures are representations of covalent molecules showing all electrons, bonding and nonbonding.

How to write a Lewis Structure 1. PCl3 5 + 3(7) = 26 Find the sum of valence electrons of all atoms in the polyatomic ion or molecule.  If it’s an anion, add one electron for each negative charge.  If it’s a cation, subtract one electron for each positive charge.

Writing Lewis Structures 2. Write the skeleton. The central atom is the least electronegative element that isn’t hydrogen. Keep track of the electrons: 26 − 6 = 20 Connect the outer atoms to it by single bonds.

Writing Lewis Structures 3. Fill the octets of the outer atoms. Keep track of the electrons: 26 − 6 = 20; 20 − 18 = 2 from bonds from octet LPs there are two remaining

Writing Lewis Structures 4. Add any leftover lone pairs to the central atom. Keep track of the electrons: 26 − 6 = 20; 20 − 18 = 2; 2 − 2 = 0 from bonds from octet LPs LP on central atom

Check for octets!  All atoms have an octet. The structure is done

Add a comment

Related presentations

Related pages

Introduction to Lewis Structures for Covalent Molecules

Learn more about introduction to lewis structures for covalent molecules in the Boundless open textbook.
Read more

Introduction to Lewis Structures

Draw a Lewis structure for a hydrogen atom next to a structure for a chlorine ... Introduction to Lewis Structures Name _____ Chem Worksheet 9-1 .
Read more

Ionic Bonding: Introduction and Lewis Dot Structures ...

Learn the basics of ionic bonding and Lewis Dot structures. Ionic Bonding Basics
Read more

an introduction to Lewis structures and bonding. - AUS-e-TUTE

Lewis Structures, electron dot diagrams, an introductory tutorial suitable for chemistry students
Read more

Introduction to the Lewis Dot Structures -

Lewis dot structures may seem confusing at first. Here are five steps to help you conquer any molecular structure problem! Start by identifying the central ...
Read more

Lewis Structures - Chemistry LibreTexts

Introduction. Writing out Lewis structures can be at times, tricky and somewhat difficult. A compound can have multiple Lewis Structures that contribute to ...
Read more

AK LECTURES - Introduction to Lewis Structure

Watch Lecture, Lewis dot structures are essentially shortcut representations of electrons around the atom, molecule or compound
Read more

Bonding: Introduction to Lewis Dot Structures - Video ...

The great chemist, Gilbert N. Lewis created a simple way to show how atoms in compounds (typically covalent) bond with each other. The trick to keeping it ...
Read more

Introduction to Lewis Structures - YouTube

Lewis Dot Structures tutorial: How to Draw Electron Dot Diagrams made easy; Crash Chemistry Academy - Duration: 3:49. Crash Chemistry Academy ...
Read more

Lewis Structures: An Introduction by Cristian M. on Prezi

Lewis Structures: An Introduction Lewis structures show how the valence electrons of atoms in a molecule are arranged. These only apply to covalent ...
Read more