Overgangsmetals
Overgangsmetals, also known as transition metals, are a group of elements found in the d-block of the periodic table. They are characterized by their ability to form stable compounds in multiple oxidation states and their tendency to act as catalysts in chemical reactions. The transition metals include elements from groups 3 to 12 in the periodic table, which are scandium (Sc), titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), and zinc (Zn), as well as the elements in groups 11 and 12, which are the coinage metals (Cu, Ag, Au) and zinc group metals (Zn, Cd, Hg). These elements are known for their diverse chemical properties, including the ability to form colored compounds, act as catalysts, and exhibit variable oxidation states. Transition metals play crucial roles in various biological processes and are essential components of many enzymes and cofactors. They are also widely used in industrial applications, such as in the production of alloys, catalysts, and electronic devices. The unique electronic structure of transition metals, with partially filled d-orbitals, contributes to their distinctive chemical behavior and reactivity.