The following conceptual differences exist between tetrabromotungsten (WBr4) and tungsten dibromide (WBr2):
Chemical formula: The chemical formula of tetrabromotungsten is WBr4, which means that it contains one atom of tungsten and four atoms of bromine. The chemical formula of tungsten dibromide is WBr2, which means that it contains one atom of tungsten and two atoms of bromine.
Oxidation state: The tungsten in tetrabromotungsten is in the +4 oxidation state, meaning that the tungsten atom has lost four electrons. The tungsten in tetrabromotungsten is in the +2 oxidation state, which means that the tungsten atom has lost two electrons.
The tungsten element in tetrabromotungsten has a valence of +4, which indicates charge transfer and chemical bonding between the tungsten atom and four bromine atoms. The tungsten element in tungsten dibromide, on the other hand, has a valence of +2, which indicates charge transfer and chemical bond formation between tungsten atoms and two bromine atoms.
Types of compounds: Tungsten tetrabromide is a tetrahalide in which tungsten atoms form covalent bonds with four bromine atoms. Tungsten dibromide is a dihalide in which tungsten atoms form covalent bonds with two bromine atoms.
These conceptual differences are mainly related to the chemical formula, oxidation state and valency, reflecting the different chemical states and coordination modes of tungsten in the two compounds.
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