Glossary. double covalent bond: A covalent bond formed by atoms that share two pairs of electrons.
When a bond forms it needs 2 electrons to share in a covalent bond we need two electrons that are being shared between the two atoms and when we have single covalent it means just one bond between two atoms and it means only two electrons are being shared.
Two electrons are shared in 1 single covalent bond. Two pairs or four electrons are shared in a double covalent bond. Describe ionic bonding. Ionic bonding involves a complete transfer of one or more electrons from one atom to another; this process forms metal cations and nonmetal anions.
triple bond, in chemistry, a covalent linkage in which two atoms share three pairs of electrons, as in the nitrogen molecule, N2, or acetylene, C2H2.