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Bond length: length:<br />
The optimum distance between<br />
nuclei involved in a covalent <strong>bond</strong>. If the<br />
atoms are too far apart, the attractive forces<br />
are small and no <strong>bond</strong> exists. If the atoms<br />
are too close, the repulsive interaction<br />
between the nuclei is so strong that it pushes<br />
the atoms apart, Fig 5.2.<br />
Prentice Hall © 2003 Chapter Five 7