Answer
A covalent bond is a chemical bond formed by two atoms sharing one or more pairs of electrons. A single covalent bond is expressed as a single line between the atoms. Atoms that share two pairs of electrons form a double covalent bond, expressed as two single lines. A triple covalent bond, expressed as three single lines, occurs when atoms share three pairs of electrons.
Work Step by Step
Covalent bonds are stronger and far more common in organisms than are true ionic bonds.
