Carbon to Carbon Bonds

Ethane is a hydrocarbon that contains a single carbon–carbon bond

Carbon-carbon bonds

A carbon atom has 4 valence electrons

A carbon atom has 4 valence electrons

A single bond

Most bonds that carbon form are single bonds. Single bond simply means sharing one pair of bonding electrons between two atoms and is represented by a single line. 

Two carbon atoms forming a single bond

Two carbon atoms forming a single bond

In ethane, two carbons atoms share a single bond

Structural drawing of an ethane molecule showing the single carbon to carbon bond

A double bond

A carbon atom can also form multiple bonds with other carbon atoms.

In a double bond, two pairs of electrons are shared.

In ethylene, a double bond is formed between two carbon atoms

ethlyene - double bonds

A triple bond

In a triple bond, three pairs of electrons are shared

A triple bond between two carbon atoms

In ethyne, a triple bond is formed between two carbon atoms

A triple bond in ethyne

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