Sodium azide (NaN₃) is an ionic compound. It consists of positively charged sodium ions (Na⁺) and negatively charged azide ions (N₃⁻). The bonding between sodium and azide ions is ionic bonding.

Molecular Structure:

In sodium azide, the azide ion (N₃⁻) is linear. The nitrogen atoms are arranged in a straight line, with a triple bond between the first two nitrogen atoms and a single bond between the second and third nitrogen atoms. The sodium ions are located in the spaces between the azide ions, forming an ionic solid.