IPA: /nɒnˈbɒndɪd/
KK: /nɑnˈbɑndɪd/
Describing pairs of electrons that are not involved in forming bonds between atoms.
In the molecule, the nonbonded electrons are crucial for determining its shape.
Nonbonded → It is formed from "non-" (meaning not) and "bonded" (from the root "bond" which comes from Old English "bonda", meaning a peasant or a person bound to a lord). The term "nonbonded" refers to something that is not bound or connected, particularly in a chemical context where atoms or molecules are not bonded together.
Think of 'not' ('non-') being connected or 'bound' — that's why nonbonded means not connected.