Question

State and ecplain fajans rule geometry of covalent molecules

Answer 1

Answer:

Explanation:

This rule states that:

A compound with low positive charge and large cation and small anion has ionic bond whereas the compound with high positive charge and small cation and large anion are covalently bonded.

EXPLANATION:

Fajan's rule is used to decide a relative ionic and covalent character in a molecule.

for example NaCl is ionic because its cation is large and anin is small on the other AlI3 is covalent in nature because its cation is small and anion is large

Answer 2

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Here is your answer

» For a given cation, covalent character Increases with increase in size of the anion

» For a given anion, covalent character increases with a decrease in the size of the cation

» Covalent character Increseas with increasing charge either on cation or an anion

» Covalent character is higher for compounds with cations with pseudo noble gas electronic configuration