Examples of Double Covalent Bonds

In this video we’ll look at several examples of double bonds in covalent compounds (also called molecular compounds). Double bonds occur with two pairs of valence electrons are shared between atoms. We can represent that with dots to show the electrons or with two lines (each line represents a pair of electrons).

Common examples of double bonds are:
Oxygen Lewis Structure:    • How to Draw the Lewis Dot Structure f...  
Ethene Lewis Structure:    • How to Draw the Lewis Dot Structure f...  
Acetone Lewis Structure:    • Acetone Lewis Structure: How to Draw ...  

The formation of a double bond allows for a molecule to attain octets for each atom in the molecule.

---- Steps to Write Lewis Structure for Compounds (including double bonds) ----
1. Find the total valence electrons for the molecule.
2. Put the least electronegative atom in the center. Note: Hydrogen (H) always goes outside.
3. Put two electrons between atoms to form a chemical bond.
4. Complete octets on outside atoms.
5. If central atom does not have an octet, move electrons from outer atoms to form double or triple bonds.

---- Lewis Resources ----
• Lewis Structures Made Simple:    • How to Draw Lewis Structures: Five Ea...  
• More practice:    • Lewis Dot Structure Practice Problems...  
• Counting Valence Electrons:    • Finding the Number of Valence Electro...  
• Calculating Formal Charge:    • Formal Charges: Calculating Formal Ch...  
• Exceptions to the Octet Rule:    • Exceptions to the Octet Rule  

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