Question

which of the following pairs will form most stable ionic bond ?
a Na and Cl
b Mg and F
c Li and F
d Na and F

Answer 1

option a Na and Cl
as Na has one extra electron and Cl wants one electron to complete octate

Answer 2

The most stable ionic bond exists between Mg and F.

Option (b).

Explanation:

• Ionic bond will form when there will be a transfer of the valence electrons in between the atoms.

• Its stability will depend on Lattice Energy which is a crucial factor.

• In Magnesium and Fluorine electron pair, there will be two ions $Mg^2^+$ which is the Magnesium ion and the$F^-$ which is the Fluorine ion.

• They will be attached by an ionic bond which will transfer the electrons mutually.

• These two ions were having a strong electrostatic force of attraction between them due to the ionic bonding and due to the metal ion which loses 2 electrons, which makes then stable with respect to their ionic bond.

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