In which type of chemical bonding are electrons shared between adjacent atoms?

The type of chemical bonding relating to or denoting bonds formed by the sharing of electrons between adjacent atoms is call covalent. With covalent, the electron pairs may also be called shared pairs or bonding pairs. There is a stable balance of attractive and repulsive forces between the atoms as they share electrons.

With many molecules, the sharing of electrons allows each atom to attain the equivalent of a full outer shell, corresponding to a stable electronic configuration. The two most basic types of chemical bonds are characterized as either ionic or covalent. Ionic bonds require at least one electron donor and one electron acceptor. Atoms with the same electronegativity will share electrons in covalent bonds. Both of these kinds of bonds are extremely important in organic chemistry.