Bonding Basics
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Bonding Basics

Diagram showing electrons attracted by two atoms.In covalent bonding, both atoms are trying to attract electrons--the same electrons. Thus, the electrons are shared tightly between the atoms. The force of attraction that each atom exerts on the shared electrons is what holds the two atoms together.

The shared electrons of a covalent bond can be represented using Lewis diagrams. The bond can be emphasized by using a line to "hold the atoms together." The electron dots that are not involved in the bond are sometimes shown and sometimes not shown. Lewis diagrams representing the bonds in HF.