Question

why does the first ionisation level of the sodium atom is not equal to the second ionization of level of Nitrogen​

Answer 1

Explicação:

The first ionization energy is always less than the second ionization energy and so on.

This happens because, in the first case, the electron is in the outermost layer of the nucleus and, as it is further away from the protons, the attraction between them is smaller, making it easier to remove the electron.