fajan rules
Sumit Modi , 13 Years ago
Grade 12th Pass
Physical Chemistry> chemical bonding
1 Answers
bhanuveer danduboyina
Last Activity: 13 Years ago
the cation and the relative sizes of the cation and anion. They can be summarized in the following table:
Ionic: Low positive charge , Large cation , Small anion
Covalent : High positive charge , Small cation, Large anion
Thus sodium chloride (with a low positive charge (+1), a fairly large cation (~1 Å) and relatively small anion (2Å) is ionic; but aluminium iodide (AlI3) (with a high positive charge (+3) and a large anion) is covalent."
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