linear combination of atomic orbitals

According to LCAO method, the orbitals are formed by the linear combination (addition or subtraction) of atomic orbitals of the atoms, which form the molecule. This theory is applicable to hydrogen molecule as follows. Consider that ..

The combining atomic orbitals should not differ much in energies. For e.g., in case of homonuclear diatomic molecules of the type A 2 ' 2s-orbital of one atom can combine with 2s-orbital of another atom but 1s-..

Molecular orbitals are formed by the combination of atomic orbitals. But all types of orbitals cannot combine with each other. The following are the main conditions for effective combination of atomic orbitals..

There are three p-orbitals namely 2p x 2p y and 2p z , which are directed in space along the x, y and z, coordinate axes respectively. By convention, z-axis is assumed to be the internuclear axis. The x and y-axes would then be perpendicular to the internuclear axis. The combinati..

Like 1s-orbitals, 2s-orbitals combine by addition and subtraction of overlappingwavefunctions to form bonding and antibonding molecular orbitals. These are labeled as s 2s,and s *2s. These molecular orbitals have exactly the same shapes as ..

Molecular Orbital Theory - Molecular orbital theory was proposed by F. Hund and R.S. Mulliken in 1932. The basic idea of molecular orbital theory is that atomic orbitals of individual atoms combine to form molecular orbitals..

Atomic Orbitals - Electrons cannot exist at a particular point or in a well-defined orbit (path), according to the above new approach called wave mechanics. This led to the concept of 'most probable regions'. We talk about 'certain regions in space around the nucleus c..

Electrons cannot exist at a particular point or in a well-defined orbit (path), according to the above new approach called wave mechanics. This led to the concept of 'most probable regions'. We talk about 'certain regions in space around the nucleus called atomic orbi..

Differences between Atomic and Molecular Orbitals - The important differences between atomic and molecular orbitals a..

Shapes of Atomic Orbitals - An atomic orbital is the space around the nucleus in which the probability of finding the electron is maximum. These most probable regions can be diagrammatically represented by cloud density (dot) diagrams. The density of dots (or..