Ionic, Covalent, and Metallic Bonds
Covalent Bonds: A chemical link between two atoms that share electrons between them is called a covalent bond. An example of a substance with a covalent bond is the bond between hydrogen and oxygen in a water molecule. The majority of substances with covalent bonds are powdery or granular, soluble in water, have a low melting point, and are not conductive as solids, liquids, or when dissolved in water.
Metallic Bonds: Metallic bonding occurs when electrons freely move around a metal lattice and form a bond between the metals. An example of a metallic bond is in the element Cobalt (Co). In most situations, substances with metallic bonds are shiny, not soluble in water, have high melting points, and are conductive in solid and liquid form.