What is the real name of N4Se4? 3
The common name is nitrogen selenide. The clear name is selenium (III) nitride (first with the highest electron element and second with the highest electron element).
The more formal name is tetraselene tetranitride.
If you are looking for a computer programmed answer to a chemical engineering problem, ask: Write the compound name N4Se4 and type the answer: Tetra Nitrogen Tetraselenide.