Teleelements

Teleelements are a type of element found in the periodic table that exhibit unique properties and behaviors. They are not a distinct category of elements but rather a term used to describe elements that have certain characteristics in common. These elements are often referred to as "teleelements" because they have a tendency to form compounds with other elements that are not immediately adjacent to them in the periodic table. This phenomenon is known as "teleconnection" or "televalence."

Teleelements are typically found in the transition metals and the lanthanides. They are characterized by their ability to form multiple oxidation states and to exhibit variable valency. This means that they can form compounds with a variety of different elements, not just those immediately adjacent to them in the periodic table. For example, copper (Cu) is a teleelement that can form compounds with a wide range of elements, including those from different groups in the periodic table.

The term "teleelements" was first coined by the chemist Linus Pauling in the 1930s. He used the term to describe elements that had a tendency to form compounds with other elements that were not immediately adjacent to them in the periodic table. This phenomenon was later explained by the concept of "televalence," which refers to the ability of an element to form compounds with a variety of different elements.

Teleelements play an important role in chemistry and materials science. They are used in a wide range of applications, from catalysis and electrochemistry to magnetism and superconductivity. Understanding the properties and behaviors of teleelements is therefore crucial for the development of new materials and technologies.