When a positively charged sodium atom (Na+) and a negatively charged chlorine atom (Cl-) come into contact, they will form an ionic bond and create a sodium chloride molecule (NaCl), commonly known as table salt.

Here's why:

* Opposite Charges Attract: The positive charge on the sodium ion and the negative charge on the chlorine ion create a strong electrostatic attraction between them.

* Electron Transfer: The sodium atom, having lost an electron, has a complete outer shell of electrons. The chlorine atom, having gained an electron, also achieves a full outer shell. This stable configuration is what drives the bond formation.

* Ionic Bond Formation: The electrostatic attraction between the oppositely charged ions is so strong that they come together and form an ionic bond, creating a neutral molecule.

In simpler terms: Imagine the sodium atom as a small, positively charged ball and the chlorine atom as a larger, negatively charged ball. When they get close, the opposite charges pull them together, locking them in a stable bond.

The resulting salt molecule (NaCl) is a crystal lattice structure where sodium and chlorine ions alternate in a regular arrangement. This arrangement allows for the strong electrostatic forces between the ions to be maximized, creating a very stable compound.