The atomic mass number of nitrogen is 14. This value represents the total number of protons and neutrons in the nucleus of a nitrogen atom.
Nitrogen has an atomic number of 7, which means it has 7 protons in its nucleus. The atomic mass number is calculated by adding the number of protons to the number of neutrons. In the case of nitrogen, it typically has 7 neutrons, resulting in an atomic mass number of 14.
It’s important to note that the atomic mass number can vary slightly for different isotopes of nitrogen. For example, nitrogen-15 is an isotope with 8 neutrons, giving it an atomic mass number of 15. However, the most common and stable isotope of nitrogen is nitrogen-14, which is why the atomic mass number is generally considered to be 14.