Why does common table salt (NaCl) have a high melting point?

A.
It forms an ionic bond with a crystal lattice structure.
B.
It forms a covalent bond with a Lewis dot structure.
C.
It forms a metallic bond with an electron sea model structure.
D.
It forms a covalent bond by sharing electrons.
E.
It forms a metallic bond with a Lewis dot structure.

1 answer

The correct answer is:

A. It forms an ionic bond with a crystal lattice structure.

Common table salt (NaCl) consists of sodium (Na⁺) and chloride (Cl⁻) ions that are held together by strong ionic bonds. These ions arrange themselves in a crystal lattice structure, which is highly stable and requires a significant amount of energy to break apart, resulting in a high melting point.