Noun
a chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion
Source: WordNetIn general, when ionic bonding occurs in the solid (or liquid) state, it is not possible to talk about a single "ionic bond" between two individual atoms, because the cohesive forces that keep the lattice together are of a more collective nature. Source: Internet
The two oppositely charged ions attract one another, and the ionic bond is the electrostatic force of attraction between them. Source: Internet