CuBr is the systematic formula for the name cuprous bromide.
The chemical formula that gives total number of atoms of each element in one molecule of a compound is called Molecular Formula.
Oxidation state is also known as oxidation number. It is defined as the atom is equal to the total number of electrons which have been removed from the element in order to form chemical bond with other atom.
In cuprous bromide cation Br⁻ and anion Cu⁺. The anion Cu⁺ and the cation Br⁻ have same charge. So formula for cuprous bromide is CuBr.
Thus from the above conclusion we can say that The systematic formula for the name cuprous bromide is CuBr.
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