Electronegativity scales: 1.Pauling scale of electronegativity: in diatomic molecule (A-B) ,the bond formed between two atoms A and B will be intermediate between pure Covalent (A-B) and pure ionic character, the bond between A and B will be strong than bond energy increased. if bond (A-B) has been purily covalent than bond energy can be calculated as average bond energy of bond (A-A) and bond (B-B). that means it is equal to bond energy of bond (A-B) E(A-B) = 1/2[ E(A-A) +E(B-B) ] however experiemental value of bond (A-B) more than this value because of difference in electronegativity of A and B the difference ∆ is given by simple expression ∆ = E(A-B) - 1/2 [E(A-A) +E(B-B) ] where E(A-B) is experimental value of bond energy. if Ҳ(A) and Ҳ(B) are the electronegative of elements A and B than Ҳ(A) - Ҳ(B) = 0.18√∆ for numerical ∆ = E(A-B) -[√(E(A-A) ×E(B-B) )] Disadvan...
inorganic chemistry inorganic chemistry, atomic structure, periodic properties, covalent bond ,ionic bond, orbital, shape of orbital, numericals, dual nature wave nature bohr's postulates, hinesberg principal, quantum numbers, pauli exclusive principal, aufbau principal, limitation, electronic configuration of lanthanoids and transition elements, screening effect, shielding effect, slater rule and it's limitation.




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