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Lewis Dot Structures: Double Bonds, Triple Bonds, and Resonance Structures

Lewis Dot Structures: Double Bonds, Triple Bonds, and Resonance Structures

Author: Christine Glieden
Objective:

To learn how to draw a Lewis Dot Diagram for a molecule which has a double or triple bond.
To learn how to represent and resonance structures in Lewis Dot Diagrams.

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Tutorial

Definitions Needed for Lewis Dot Structures

Single Bond: "A covalent bond between two atoms that is formed by one bonding pair of electrons." G-14


Double Bond: "A multiple covalent bond between two atoms that is formed by two bonding electron pairs." G-5


Triple Bond: "A multiple covalent bond between two atoms that is formed by three bonding pairs of electrons." G-15


Multiple Covalent Bond: "more than one bond between atoms, formed by the sharing of more than one electron from each atom. Can be either a double bond or triple bond." G-10

Resonance Structures: "Two or more equally correct dot representations of the same molecule; representation is the actual structure of the molecule." G-13

Source: Russo, Steve; Silver, Mike; "Introductory Chemistry" Third Edition, 2007

Double and Triple Bonds for Lewis Dot Structures

This video has examples such as: C2H2, O2, CNH, and N2

Source: Oxtoby, David W.; Freeman, Wade A.; Block, Toby, F.; "Science of Change" 4th Edition, 2003 AND Russo, Steve; Silver, Mike; "Introductory Chemistry" Third Edition, 2007

Resonance Structure

This video goes through three different examples of resonance structures: NO2+, O3, NO3-.

Questions and Answers

Academic Reviews
SOPHIA has reviewed the tutorial and found it academically sound.
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