How does a carbon atom's ability to form bonds with other carbon atoms allow it to form large molecules

Because of the fact that Carbon only has 4 electrons in its valence electron rim, a single carbon atom can bond with up to 4 other elements at once, so when a carbon atom bonds with another carbon atom that;s up to six bonds that can be made and just keep adding carbon atoms, and the more bonds you can make.

Ido not understand. 

c. electrical charges of ionic bonds.

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