When sodium reacts with chlorine Each sodium atom gains one electron Each chlorine atom loses one electron A covalent bond is formed The compound formed is a solid

When sodium reacts with chlorine, each sodium atom gains one electron. This means that the sodium atom goes from having an electron configuration of 2,8,1 to 2,8,2. On the other hand, each chlorine atom loses one electron, going from an electron configuration of 2,8,7 to 2,8,8.

The transfer of electrons from sodium to chlorine results in the formation of ions. Sodium becomes a positively charged ion, or cation, with a charge of +1, while chlorine becomes a negatively charged ion, or anion, with a charge of -1.

These oppositely charged ions are then attracted to each other due to electrostatic forces, forming an ionic bond. However, it is important to note that the bond between sodium and chlorine is not purely ionic. Instead, it has some covalent character.

In a covalent bond, electrons are shared between atoms. In the case of sodium chloride, the electron pair is shared unequally, with chlorine having a stronger pull on the shared electrons due to its higher electronegativity. This results in a partial negative charge on the chlorine atom and a partial positive charge on the sodium atom.

The compound formed, sodium chloride (NaCl), is a solid at room temperature and forms a crystal lattice structure. This arrangement allows for the strong electrostatic attractions between the positive and negative ions, giving sodium chloride its characteristic properties such as high melting and boiling points.