Answer :
The answer is covalent bonds. Since sodium is surrendering its electron and offering it to chlorine, the bond is ionic. The exemplary instance of ionic holding, the sodium chloride particle shapes by the ionization of sodium and chlorine iotas and the fascination of the subsequent particles.
Sodium loses its electron by ionization and sodium becomes positivey charged. Cholride ion on the other hand, is negatively charged, and this, an ionic bond is formed in between the two. Apart from this, they also have strong electrostatic attarcatiob between each other.