Chemistry of Selected Transition Metals

Iron, the active site of many redox enzymes, has many oxidation states, but ferrous (Fe²⁺) and ferric (Fe³⁺) are the most common.

Copper is a ductile metal that conducts heat and electricity and forms a rich variety of compounds with oxidation states +1 and +2.

Chromium exhibits a wide range of possible oxidation states, where the +3 state is the most stable energetically.

The most common oxidation states of the metal manganese are +2, +3, +4, +6, and +7; the +2 oxidation state is the most stable.

Silver has the highest electrical conductivity of any element and the highest thermal conductivity of any metal.

Mercury is a heavy, silvery d-block metal that forms weak bonds and is a liquid at room temperature.