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table 2.4
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Fe3+
iron (III) cation
Fe2+
iron (II) cation
Cu2+
copper (II) cation
Cu+
copper (I) cation
Co3+
cobalt (III) cation
Co2+
cobalt (II) cation
Sn4+
tin (IV) cation
Sn2+
tin (II) cation
Pb4+
lead (IV) cation
Pb2+
lead (II) cation
Hg2+
mercury (II) cation
Hg22+
mercury (I) cation
Ag+
silver cation
Zn2+
zinc cation
Cd2+
cadmium cation