Triples Bond or Triple Covalent Bond:

A triple bond, also known as a triple covalent bond, is a type of chemical bond formed between two atoms when they share three pairs of electrons. It is one of the strongest types of covalent bonds and is characterized by its high bond energy and short bond length.

Formation of Triple Bond:

The formation of a triple bond involves the sharing of three pairs of electrons between two atoms. This occurs when two atoms have a strong attraction for each other and need to achieve a stable electron configuration.

Here are the steps involved in the formation of a triple bond:

1. Overlap of Atomic Orbitals:
The atoms involved in the bond must have unpaired electrons in their valence shells. The atomic orbitals of these atoms overlap to allow the sharing of electrons. In the case of a triple bond, three atomic orbitals overlap.

2. Sharing of Electrons:
Once the atomic orbitals overlap, the electrons are shared between the two atoms. In a triple bond, each atom contributes three electrons, resulting in the formation of three shared electron pairs. This sharing allows both atoms to achieve a more stable electron configuration.

3. Formation of Sigma Bond:
The first electron pair is shared through the end-to-end overlap of atomic orbitals, resulting in the formation of a sigma (σ) bond. This sigma bond is formed by the overlap of two s orbitals or one s orbital and one p orbital.

4. Formation of Pi Bonds:
The remaining two electron pairs are shared through sideways overlap of p orbitals. This results in the formation of two pi (π) bonds. Pi bonds are weaker than sigma bonds and are formed by the side-to-side overlap of p orbitals.

Examples of Triple Bonds:

1. Nitrogen Molecule (N2):
In a nitrogen molecule, two nitrogen atoms are connected by a triple bond. Each nitrogen atom contributes three electrons, resulting in the sharing of six electrons. The first bond is a sigma bond formed by the overlap of two s orbitals, while the remaining two bonds are pi bonds formed by the overlap of two sets of p orbitals.

2. Acetylene (C2H2):
Acetylene is a hydrocarbon with the molecular formula C2H2. It consists of two carbon atoms connected by a triple bond. Each carbon atom contributes three electrons, resulting in the sharing of six electrons. The first bond is a sigma bond formed by the overlap of two sp hybrid orbitals, while the remaining two bonds are pi bonds formed by the overlap of two sets of p orbitals.

In conclusion, a triple bond or triple covalent bond is formed by the sharing of three pairs of electrons between two atoms. It involves the overlap of atomic orbitals and the formation of sigma and pi bonds. Two examples of compounds with triple bonds are nitrogen molecule (N2) and acetylene (C2H2).