What is the name of the chemical link between atoms in a molecule?

The chemical link between atoms in a molecule is referred to as a bond. Bonds occur when atoms share or transfer electrons, which allows them to form stable associations. There are different types of chemical bonds, such as covalent bonds—where atoms share electrons—and ionic bonds—where one atom donates an electron to another. This bonding is essential for the formation of molecules, which make up the various substances found in living organisms, as well as in all forms of matter.

Other terms, such as linkage, connection, and alliance, do not specifically describe the scientific concept of how atoms interact within a molecule. While they may imply some form of relationship, they lack the precise definition and context relevant to chemistry and molecular biology. Understanding chemical bonds is fundamental to grasping how substances interact chemically and how biological processes occur at the molecular level.