Question

Lowest lattice energy will be possessed by:

• A. $NaF$
• B. $Mg{F}_2$
• C. $AI{F}_3$
• D. $LiF$

Answer 1

The correct option is A $NaF$

Lattice energy of $NaF=923$ KJ/mol

$LiF=1036$ KJ/mol

${MgF}_2=2962$ KJ/mol

${AlF}_3=5215$ KJ/mol

$\therefore$ Lowest lattice enthalpy is for $NaF$

Ans :- Option A.