Kolmiksideme

Kolmiksideme refers to a triple bond, a type of covalent chemical bond involving three pairs of shared electrons between two atoms. This is in contrast to a single bond (one shared pair) and a double bond (two shared pairs). Triple bonds are shorter and stronger than single or double bonds between the same two atoms. They are also less reactive than double bonds.

Triple bonds are commonly found in diatomic molecules such as nitrogen gas (N2) and acetylene (C2H2). In nitrogen gas, the triple bond between the two nitrogen atoms is exceptionally strong, contributing to nitrogen's relative inertness. In acetylene, a triple bond exists between the two carbon atoms, making it a highly reactive hydrocarbon. The presence of a triple bond significantly influences the geometry and reactivity of molecules. For instance, atoms connected by a triple bond are typically arranged linearly.

The formation of a triple bond involves the overlap of one sigma (σ) orbital and two pi (π) orbitals between the two atoms. This orbital hybridization results in a strong and stable connection. The bond order for a triple bond is three. Compounds containing triple bonds are often referred to as alkynes in organic chemistry, although the term can also apply to inorganic compounds.