There is no anion which is named Tribromide, but the Bromide ion exists. The Tribromide is formed when a compound has 3 Bromine atom attached to an less electronegative element.
The compound formula for phosphorus tribromide is PBr3.
The chemical formula of sulfur tribromide is SBr3.
NBr3 Covalent
The formula for chlorine tribromide is PBr to the 3 power. This is a colorless liquid that is has hydrolysis it in and fumes in moist air.
If you want to ask questions about "which of these", then I suggest that you make sure that there is something that is following.
The formula for pentasulfur tribromide is S5Br3.
The chemical formula for boron tribromide is BBr3.
The chemical formula of sulfur tribromide is SBr3.
The compound formula for phosphorus tribromide is PBr3.
The chemical formula for boron tribromide is BBr3.
NBr3 Covalent
Formula: SbBr3
Formula: AlBr3
Formula: SbBr3
The formula for chlorine tribromide is PBr to the 3 power. This is a colorless liquid that is has hydrolysis it in and fumes in moist air.
The chemical formula for boron tribromide is BBr3. It is a colorless, fuming liquid that is used in organic synthesis as a reagent.
The chemical formula of phosphorus tribromide is PBr3. It consists of one phosphorus atom bonded to three bromine atoms.