"Symbols" represent single atoms. The chemical formulafor lead (IV) chloride is PbCl4.
Chloride is an ion and would be Cl-
The chemical symbol for magnesium chloride is MgCl2.
The chemical symbol for aluminum chloride is AlCl3.
The chemical symbol of zinc chloride is ZnCl2.
The "symbol" for a compound is properly called a chemical formula, and for methylene chloride it is CH2Cl2.
Formula: PbO2
The chemical formula (not symbol) for hydrogen chloride is HCl.
Pb(C2H3O2)4
The answer is Cl-
The chemical symbol for phosphorus trichloride is PCl3.
Silver Chloride is a chemical compound. Its chemical formula is AgCl.
Formula: HCl