There are several differences between tungsten tetrabromide (WBr4) and tungsten dibromide (WBr2):
Chemical composition: Tungsten tetrabromide consists of one atom of tungsten and four atoms of bromine and has the chemical formula WBr4, while tungsten dibromide consists of one atom of tungsten and two atoms of bromine and has the chemical formula WBr2.
Oxidation state: Tungsten in tetrabromotungsten is in the +4 oxidation state, while tungsten in tungsten dibromide is in the +2 oxidation state.
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