Activity Series of Metals in Aqueous Solution Metal Oxidation Reaction Potential (most easily oxidized) Eo in volts Lithium Li Li+ + 1e- 3.04 ➔ Potassium K K+ + 1e- 2.931 ➔ Barium Ba Ba2+ + 2e- 2.912 ➔ Calcium Ca Ca2+ + 2e- 2.868 ➔ Sodium Na Na+ + 1e- 2.71 ➔ Magnesium Mg Mg2+ + 2e- 2.377 ➔ Aluminum Al A13+ + 3e- 1.662 ➔ Manganese Mn Mn2+ + 2e- 1.185 ➔ Zinc Zn Zn2+ + 2e- 0.762 ➔ Chromium Cr Cr3+ + 3e- 0.744 ➔ Iron Fe Fe2+ + 2e- 0.489 ➔ Cobalt Co Co2+ + 2e- 0.280 ➔ Nickel Ni Ni2+ + 2e- 0.257 ➔ Sn Sn Sn2+ + 2e- 0.140 ➔ Lead Pb Pb2+ + 2e- 0.126 ➔ Hydrogen H2 2H+ + 2e- 0.00 ➔ Copper Cu Cu2+ + 2e- -1.17 ➔ Silver . Ag Ag+ + 1e- -0.80 ➔ Mercury Hg Hg2+ + 2e- -0.851 ➔ Platinum Pt Pt2+ + 2e- -1.118 ➔ Gold Au Au3+ + 3e- -1.498 ➔ (Most easily reduced) BASE UNITS IN THE SI SYSTEM, SCIENTIFIC PREFIXES FOR MAGNITUDES, AND CONVERSION FACTORS RELATING LENGTH, VOLUME, AND MASS UNITS TABLE I: UNITS OF MEASUREMENT QUANTITY SI UNIT SYMBOL COMMONLY USED SYMBOL Mass kilogram kg gram g
Activity Series of Metals in Aqueous Solution Metal Oxidation Reaction Potential (most easily oxidized) Eo in volts Lithium Li ➔ Li+ + 1e- 3.04 Potassium K ➔ K+ + 1e- 2.931 Barium Ba ➔ Ba2+ + 2e- 2.912 Calcium Ca ➔ Ca2+ + 2e- 2.868 Sodium Na ➔ Na+ + 1e- 2.71 Magnesium Mg ➔ Mg2+ + 2e- 2.377 Aluminum Al ➔ A13+ + 3e- 1.662 Manganese Mn ➔ Mn2+ + 2e- 1.185 Zinc Zn ➔ Zn2+ + 2e- 0.762 Chromium Cr ➔ Cr3+ + 3e- 0.744 Iron Fe ➔ Fe2+ + 2e- 0.489 Cobalt Co ➔ Co2+ + 2e- 0.280 Nickel Ni ➔ Ni2+ + 2e- 0.257 Sn Sn ➔ Sn2+ + 2e- 0.140 Lead Pb ➔ Pb2+ + 2e- 0.126 Hydrogen H2 ➔ 2H+ + 2e- 0.00 Copper Cu ➔ Cu2+ + 2e- -1.17 Silver . Ag ➔ Ag+ + 1e- -0.80 Mercury Hg ➔ Hg2+ + 2e- -0.851 Platinum Pt ➔ Pt2+ + 2e- -1.118 Gold Au ➔ Au3+ + 3e- -1.498 (Most easily reduced) BASE UNITS IN THE SI SYSTEM, SCIENTIFIC PREFIXES FOR MAGNITUDES, AND CONVERSION FACTORS RELATING LENGTH, VOLUME, AND MASS UNITS TABLE I: UNITS OF MEASUREMENT QUANTITY SI UNIT SYMBOL COMMONLY USED SYMBOL Mass kilogram kg gram g