Answer:
Covalent bond is a bond that shared electrons between two neutral atoms.
Step-by-step explanation:
The chemical link between any two ion or atom that is formed by sharing electron pairs is called as covalent bond. It is also known as molecular bond. Nonmetal atoms with relatively close or similar electronegativity values form a covalent bond. The major types of covalent bonds are polar and non-polar. When atoms share an equal number of electron pair, non-polar covalent bond is formed. In polar covalent bonds, the atoms share inequal pair of electrons. The compounds that are formed through covalent bonds have low boiling points and melting points. They have low enthalpies of vapourisation and fusion and are also highly flammable.