Final answer:
Bonds are the only primary bonds that are directionally dependent. One example of directionally dependent bonds is the oxygen bond in the nitrate ion (NO3-), where the bond lengths between the central nitrogen atom and each oxygen atom are identical.
Step-by-step explanation:
Bonds are the only primary bonds that are directionally dependent. This means that the arrangement of atoms in a molecule and the way the bonds are formed determine the shape and geometry of the molecule. One example of directionally dependent bonds is the oxygen bond in the nitrate ion (NO3-), where the bond lengths between the central nitrogen atom and each oxygen atom are identical.