How Does Electron Flow in Electricity Affect Atom Structure and Ionization?

It is said that electricity is electrons flowing from atoms but how come say a Nitrogen atom with 5 valance electrons missing 1 or adding 1 won t change the atom structure, I know protons will stay 7 but I don t understand the basic of how it flows and how does it affect the atom/ion itself, isn t it supposed to always have a certain number on each level, what if it passes many times won t it steal or give too many electrons, thank you (high school student =)

First, a nitrogen atom has 5 valence electrons. That is what we call an insulator. Unless in liquid form I think, that would be a different story. It is then considered a superconductor. But this is not the case here. You can google thing like this and find "videos("")":https://www.youtube.com/watch?v=oB1v-wh7EGU .

Some kinds of atoms have loosely attached electrons. An atom that loses electrons has more protons than electrons and is positively charged. An atom that gains electrons has more negative particles and is negatively charge. A "charged" atom is called an "ion."