Question

define fajan's rule .please tell me simple definition no complex definition like net or book definition i will marks as brainlist

Answer 1

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.

Answer 2

Fajan's rule
As increasing the size of cations, they are more ionic in nature.
●Example 1

Anios having small size are formed easily and hence more ionic in nature.
●Example 2

(Cations and Anions having low charge are more readily formed = ionic in nature)
●Example 3

Cation's having Octet configuration are more ionic in nature when compared to cations having pseudo octet configuration.

Ex : Ca+2 having octet configuration is more ionic in nature.
But Zn+2 having pseudo octet configuration is less ionic in nature.

[]_[] hope this helps.