Covalent Bonding: Sharing Electrons for Stability

Covalent Bonding.<br />Noble gases have complete outer electron shells, which make them stable.<br />The coming together and sharing of electron pairs leads to the formation of a chemical bond known as a covalent bond.<br />Two chlorine atoms come together and share their electrons to form a molecule of chlorine.<br />In this way, each atom will have eight electrons in its valence shell.<br />As a single pair of electrons is shared between them, the bond is known as a single covalent bond.<br />A single covalent bond is represented by a single dash between the atoms.<br />When two oxygen atoms come together, they each share 2 electrons to complete their octets.<br />Since they share two pairs of electrons, there is a double bond between the oxygen atoms.<br />Similarly, Nitrogen atoms share a triple covalent bond to form a molecule of Nitrogen.