CHEMISTRY THE CENTRAL SCIENCE

Common Ions

Positive Ions (Cations)

1+

ammonium (NH4+)

cesium (Cs+)

copper(I) or cuprous (Cu+)

hydrogen (H+)

lithium (Li+)

potassium (K+)

silver (Ag+)

sodium (Na+)

2+

barium (Ba2+)

cadmium (Cd2+)

calcium (Ca2+)

chromium(II) or chromous (Cr2+)

cobalt(II) or cobaltous (Co2+)

copper(II) or cupric (Cu2+)

iron(II) or ferrous (Fe2+)

lead(II) or plumbous (Pb2+)

magnesium (Mg2+)

manganese(II) or manganous (Mn2+)

mercury(I) or mercurous (Hg22+)

mercury(II) or mercuric (Hg2+)

strontium (Sr2+)

nickel(II) (Ni2+)

tin(II) or stannous (Sn2+)

zinc (Zn2+)

3+

aluminum (Al3+)

chromium(III) or chromic (Cr3+)

iron(III) or ferric (Fe3+)

Negative Ions (Anions)

1–

acetate (CH3COO or C2H3O2)

bromide (Br)

chlorate (ClO3)

chloride (Cl)

cyanide (CN)

dihydrogen phosphate (H2PO4)

fluoride (F)

hydride (H)

hydrogen carbonate or bicarbonate (HCO3)

hydrogen sulfite or bisulfite (HSO3)

hydroxide (OH)

iodide (I)

nitrate (NO3)

nitrite (NO2)

perchlorate (ClO4)

permanganate (MnO4)

thiocyanate (SCN)

2–

carbonate (CO32–)

chromate (CrO42–)

dichromate (Cr2O72–)

hydrogen phosphate (HPO42–)

oxide (O2–)

peroxide (O22–)

sulfate (SO42–)

sulfide (S2–)

sulfite (SO32–)

3–

arsenate (AsO43–)

phosphate (PO43–)