Final answer:
The hyphen notation of nitrogen depends on the compounds it is bonded to. If a hydrocarbon group is bonded to nitrogen, its name appears as a prefix preceded by N-. If two identical or different hydrocarbon groups are bonded to nitrogen, the group names are listed alphabetically as prefixes, each preceded by N-.
Step-by-step explanation:
The hyphen notation of nitrogen depends on the compounds it is bonded to.
If a hydrocarbon group is bonded to nitrogen, its name appears as a prefix preceded by N-. For example, N-methyl refers to a nitrogen atom bonded to a methyl group.
If two identical hydrocarbon groups are bonded to nitrogen, the group name is preceded by N, N-di. For instance, N,N-dimethyl represents a nitrogen atom bonded to two methyl groups.
If two different hydrocarbon groups are bonded to nitrogen, the group names are listed alphabetically as prefixes, each preceded by N-. For example, N-ethyl-N-propyl denotes a nitrogen atom bonded to an ethyl group and a propyl group.