Solutions For 9780131905429 Chapter 2 Problem 14A

A bond that is formed by sharing of electrons between the atoms is called covalent bond. In such bonds, electrons that are shared between them move in the orbitals of both the atoms. There are three types of covalent bonds and each is formed depending upon the number of electrons shared by it. More the number of covalent bonds between the atoms, more stable is the molecule.

A single covalent bond is formed between two atoms by the sharing two electrons. It is represented by a single line between the atoms. For example, H◊H is the single covalent bond in H₂ molecule.

A double covalent bond is formed between two atoms by sharing four electrons. It is represented by a two lines between the atoms. For example, HC=CH is the double covalent bond in C₂H₂ molecule.

A triple covalent bond is formed when two atoms share 6 electrons. Increase in the number of covalent bonds will also increase the stability of the molecule. It is represented by a three lines between the atoms. For example, is the triple covalent bond in N₂ molecule.

The sharing of electrons enable the attaining of the stable octet configuration in the atoms involved in the formation of covalent bonds.