what is covalent bond?

Asked by avinash_jha | 6th Nov, 2010, 12:00: AM

Expert Answer:

A covalent bond is a form of chemical bonding that is characterized by the sharing of pairs of electrons between atoms.
For Example: Chlorine

 Two chlorine atoms could both achieve stable structures by sharing their single unpaired electron as in the diagram.

The fact that one chlorine has been drawn with electrons marked as crosses and the other as dots is simply to show where all the electrons come from. In reality there is no difference between them.

The two chlorine atoms are said to be joined by a covalent bond. The reason that the two chlorine atoms stick together is that the shared pair of electrons is attracted to the nucleus of both chlorine atoms.

Answered by  | 6th Nov, 2010, 05:49: PM

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