A covalent bond is a bond formed when two atoms share a pair of electrons. A neutral group of atoms bonded together covalently is called a molecule, and a substance which is made up of molecules is called a molecular substance. Covalent molecules make...

A covalent bond is a type of chemical bond that holds different atoms together by sharing electrons. Depending on how equally the electrons are shared between the atom, these bonds may be either polar (having an unequal distribution of charge) or...

The combination of forces that holds two atoms in a fixed relationship within a molecule is called a chemical or molecular bond. In 1916, Gilbert Newton Lewis proposed that covalent bonds are formed by the sharing of electrons between the bonded atoms....

A join in the make-up of a molecule involving sub-atomic particles. A covalent bond consists of two electrons that are shared between two adjacent...

Covalent bonding is a form of chemical bonding that is characterized by the sharing of pairs of electrons between atoms, or between atoms and other covalent bonds. In short, attraction-to-repulsion stability that forms between atoms when they share...

The hydrogen bond-an attraction between a hydrogen atom in one molecule and an atom belonging to another molecule-plays a crucial role in determining the characteristics of water and the microscopic structure of ice. Theorists have predicted that a sufficiently high pressure can...

The review focusses on the fundamental importance of non-covalent interactions in nature by illustrating specific examples from chemistry, physics and the biosciences. Laser spectroscopic methods and both ab initio and molecular modelling procedures used for the study of non-covalent interactions in molecular clusters are...