What is the ionic bond formation of NaCl?
It is an ionic bond created by an attraction between the +1 sodium cation and the -1 chlorine anion.
Sodium which has an electron configuration of
Chlorine has an electron configuration of
As Paula Abdul told us in the 80's "Opposites Attract" and when the charges are equal and opposite the atoms are held together with an electrical attraction of a +1 cation and a -1 anion.
I hope this was helpful.
Nice picture, Lewis diagram and electronic configuration on this page http://www.mikeblaber.org/oldwine/chm1045/notes/Bonding/Ionic/Bond02.htm