Explain electronic theory of hardness and softness
Answers
Answer:
The terms softness and hardness are used in HSAB theory to distinguish Lewis acids and bases by charge density, polarizability , electronegativity, and, in the case of molecular compounds, HOMO and LUMO energies.
Explanation:
1)The HSAB theory predicts that hard Lewis bases react preferentially with hard acids, and that likewise soft bases form stronger bonds with soft acids.
2)For example, Li+ and BF3 are hard acids and F− and NH3 are hard bases due to their small size and high charge density/low polarizability of the ions.
3)Charge Density is inversely proportional to atomic/ionic radius and proportional to oxidation state (in case of a neutral atom) or charge (in case of an ion).
The electron theory, now accepted and used to describe electricity behavior, provinces that electric charge is photon stream and it can be described as build data.
Explanation:
The electron is the fundamental unit of diminished and the proton seems to be the fundamental unit of beneficial electricity.
The idea of softness or hardness, introduced by. Sutton (2, 3) is the foundation for the research of acid-base chemical processes of type A +: B-* A: B, where A, the sensitizer of electrons, is the acid, B, the funder of electrons. As seen below, acids or bases are classed as hard or soft.
Hardness:- The HSAB theory predicts that hard Lewis bases selectively react to hard enzymes and that similarly soft units build positive soft hydrochloric bonds.
Software:- In HSAB theory, the terms softness and hardness are being used to differentiate Lewis acids by the caseload, polarity, valence electrons, and HOMO and LUMO energy sources throughout the scenario of different substances.
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