Final answer:
The correct name for the N ion is the nitride ion, symbolized as N³-.
Step-by-step explanation:
The correct name for the N ion is c. nitride ion. Nitrogen, being in group 15 of the periodic table, forms an anion with a charge of 3- when it gains three electrons to achieve the same electron configuration as the noble gas neon. This ion is represented by the symbol N³- and is known as the nitride ion. Hence, nitrate, nitrogen, and nitrite ions are different entities and should not be confused with the nitride ion which is the simplest anion formed from nitrogen.