Question

Among the NaF,Nacl,NaBr,Nal,which is most covalent​

Answer 1

Answer:

NaI is the most covalent.

As they're located far apart from each other.

Answer 2

NaI is the most covalent due to small size of cation and large size of anion.

Explanation:

• Covalent bonds are defined as the bonds which exists due to sharing of electrons between the combining atoms.

• According to Fajan's rule, smaller is the size of cation and larger is the size of anion more covalently they will be bonded together.

• Therefore in NaI, size of sodium ion is smaller and size of iodine ion is the largest. Hence, there exists a covalent bond between sodium and iodine.

Learn more about Fajan's rule:

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