BEST CHEMICAL BONDING HAND WRITTEN NOTE

A chemical bond is described as an appealing force that holds the parts (atoms, ions and so forth.) together in a chemical species. Numerous theories had been cautioned for the formation of chemical bonds consisting of the electronic theory, valence shell electron pair repulsion theory, valence bond theory, and molecular orbital theory.

A chemical bond formation is attributed to the tendency of a system to achieve balance. It became found that the inertness of noble gases was because of their absolutely filled outermost orbitals. Therefore, it was postulated that the factors having incomplete outermost shells are unstable (reactive). Atoms, therefore, combine with every other and entire their respective octets or duplets to achieve the strong configuration of the closest noble gases. This aggregate can arise both by using sharing of electrons or by using transferring one or greater electrons from one atom to any other.

The chemical bond formed due to sharing of electrons between atoms is called a covalent bond. An ionic bond is shaped because of the transference of electrons from one atom to another. The octet rule or the electronic idea of chemical bonding became evolved through Kossel and Lewis. In keeping with this rule, atoms can combine both via switch of valence electrons from one atom to every other or by sharing their valence electrons which will gain the nearest noble fuel configuration by way of having an octet in their valence shell.

Download Your Book