Answer:
Covalent bonds can be classified based on the number of bonds formed between atoms. Here are the common classifications:
1. Single Covalent Bond:
A single covalent bond is formed when two atoms share one pair of electrons. It is represented by a single line (-) between the atoms in a Lewis structure. For example, in a molecule of hydrogen gas (H2), the two hydrogen atoms are connected by a single covalent bond.
2. Double Covalent Bond:
A double covalent bond occurs when two atoms share two pairs of electrons. It is represented by a double line (=) between the atoms in a Lewis structure. For instance, in a molecule of oxygen gas (O2), the two oxygen atoms are connected by a double covalent bond.
3. Triple Covalent Bond:
A triple covalent bond is formed when two atoms share three pairs of electrons. It is represented by a triple line (≡) between the atoms in a Lewis structure. An example of a molecule with a triple covalent bond is nitrogen gas (N2), where the two nitrogen atoms are connected by a triple bond.
These classifications are based on the number of electron pairs shared between the atoms involved in the covalent bond. Each covalent bond represents the sharing of one electron pair, regardless of whether it is a single, double, or triple bond. The type and strength of the bond depend on the number of shared electron pairs, which in turn affects the properties and behavior of the molecules involved.
Step-by-step explanation: