write a note on fajjan's rule
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According to fajan 's rule:
Smaller the size of the cation and larger the size of the anion, greater is the covalent character of ionic bond.
Greater the charge on the cation, greater is the covalent character of the ionic bond.
Cations with (n-1)d0ns0(typical of transition metal cations) is more polarising than the one with a noble gas configuration,ns2np6(typical of alkali and alkaline earth metal cations).
Or
Fajans' rule states that a compound with low positive charge, large cation and small anion has ionic bond where as a compound with high positive charge, small cation and large anion are covalently bonded.
For high charge, small cation will have more polarizing power. Where as larger is the size of anion, more will be the polarization of anion. Because if this electron cloud of anion is more diffused. This makes the anion easily polarizable
Smaller the size of the cation and larger the size of the anion, greater is the covalent character of ionic bond.
Greater the charge on the cation, greater is the covalent character of the ionic bond.
Cations with (n-1)d0ns0(typical of transition metal cations) is more polarising than the one with a noble gas configuration,ns2np6(typical of alkali and alkaline earth metal cations).
Or
Fajans' rule states that a compound with low positive charge, large cation and small anion has ionic bond where as a compound with high positive charge, small cation and large anion are covalently bonded.
For high charge, small cation will have more polarizing power. Where as larger is the size of anion, more will be the polarization of anion. Because if this electron cloud of anion is more diffused. This makes the anion easily polarizable
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here goes ur answer my dear friend.
In inorganic chemistry, Fajans' rules, formulated by Kazimierz Fajans in 1923, are used to predict whether a chemical bond will be covalent or ionic, and depend on the charge on the cation and the relative sizes of the cation and anion. They can be summarized in the following table: Thus sodium chloride
hope it helps you.
jst chillax
In inorganic chemistry, Fajans' rules, formulated by Kazimierz Fajans in 1923, are used to predict whether a chemical bond will be covalent or ionic, and depend on the charge on the cation and the relative sizes of the cation and anion. They can be summarized in the following table: Thus sodium chloride
hope it helps you.
jst chillax
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