Category: Chemical Bonding and Molecular Structure

Energy level diagram for Molecular orbitals

Energy level diagram for Molecular orbitals The first ten molecular orbitals may be arranged in order of energy as follow: σ(1s) <σ∗(1s) < σ(2s) <σ∗(2s)...

Types Of Molecular Orbital Formed

Types of molecular orbitals formed 1)If two atomic orbitals overlap along the internuclear axis ,the molecular orbital formed is called σ molecular orbital. 2)If two atomic...

Shapes Of Molecules

Shape of beryllium fluoride( BeF2) molecule Atomic number of Be= 4 Electronic configuration in ground state is 1s2 2s2 Electronic configuration in excited state is...

Hydrogen Bonding

Whenever a molecule contains a hydrogen atom linked to a highly electronegative atom, this atom attracts the shared pair of electrons more and so this...

Molecular Orbital Theory

Molecular orbital theory Features of Molecular orbital theory 1)The atomic orbitals overlap to form new orbitals called molecular orbitals. When two atomic orbitals overlap or...

Resonance

In case of certain molecules, a single Lewis structure cannot explain all the properties of the molecule. The molecule is then supposed to have many...

Coordinate Bond

Certain atoms which have complete octets can donate their valence electrons which are not involved in bond formation ,to other atoms, which are short of...

Hybridisation

Hybridisation is defined as the mixing of the atomic orbitals belonging to the same atom but having slightly different energies so that a redistribution of...

Fajan’s Rules

When a cation approaches an anion, the electron cloud of the anion is attracted towards a cation and hence gets distorted. The effect is called...

Dipole Moments

In a polar molecule, there are two poles present in the molecule.Hence, the molecule is said to possess an electric dipole.Since the molecule as a...

Polar and Non-Polar Covalent Bond

Non-polar covalent bonds If two similar atoms come close to each other and form a bond by sharing their electrons, the shared electrons are equally...

Bond Characteristics

Bond Length When atoms come closer to each other, attraction takes place between them and ,therefore, the potential energy of the system keeps on decreasing...

Types Of Covalent Bond

Depending upon the type of overlapping, the covalent bonds are mainly of two types: Sigma bond (σ)  When a bond is formed between two atoms...

Valence Bond Theory

This theory was put forward by Heitler and London in 1927 and was further developed by Pauling and others. In terms of energy When the...

Covalent Bond

The bond formed between the two atoms by mutual sharing of electrons between them so as to complete their octets or duplets in case of...

Ionic Bond

When a bond is formed by complete transference of electrons from one atom to another so as to complete their outermost orbit by acquiring 8...

Lewis Symbols

A group of atoms existing together as one species and having characteristic properties is called a molecule. This force which holds the atoms together within...