The half-life of a radioactive isotope represents the time it takes for half of the atoms in a given sample to undergo radioactive decay. However, nitrogen-14 (14N) is not a radioactive isotope and does not undergo decay. It is a stable isotope of nitrogen, meaning it does not spontaneously decay over time.
Nitrogen-14 is the most abundant and stable isotope of nitrogen, accounting for approximately 99.63% of naturally occurring nitrogen. It consists of seven protons, seven neutrons, and seven electrons. The stability of nitrogen-14 arises from the balance between the attractive nuclear forces and the repulsive electrostatic forces between its protons.
Therefore, since nitrogen-14 is a stable isotope, it does not have a half-life associated with radioactive decay. The concept of half-life is applicable to radioactive isotopes that undergo decay processes, but it does not apply to stable isotopes like nitrogen-14.