Double bond

Double bond

A double bond is a chemical bond between two chemical elements involving four bonding electrons instead of the usual two. The most common double bond occurs between two carbon atoms and can be found in alkenes. Many types of double bonds exist between two different elements. For example, in a carbonyl group with a carbon atom and an oxygen atom.

Pronunciation

• /ˈdʌb.əl bɒnd/

Etymology

The term "double bond" is derived from the fact that the bond involves two shared pairs of electrons, double the number in a single bond.

Related terms

• Single bond
• Triple bond
• Covalent bond
• Ionic bond
• Polar bond
• Nonpolar bond

See also

• Chemical bond
• Molecular geometry
• Valence
• Molecular orbital theory

External links

• Medical encyclopedia article on Double bond
• Wikipedia's article - Double bond

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