Final answer:
The name of the ionic compound NaBr is sodium bromide, which follows IUPAC nomenclature rules by naming the metal first and changing the nonmetal's ending to '-ide'.
Step-by-step explanation:
The name of the ionic compound NaBr is sodium bromide. In nomenclature for ionic compounds, the metal is named first followed by the nonmetal with its ending changed to '-ide'. Sodium bromide is composed of sodium cations (Na+) and bromide anions (Br−), combined in a 1:1 ratio. This naming convention follows the rules proposed by IUPAC for inorganic compounds, particularly those that are binary compounds, containing only two different elements.