Question

when MgO and NaCl
.
.
.
Candy there's no msg from ur side
May be any bug
from somedays app is having some problem
I m msging u now, please check​

Answer 1

hey sana here is ur answer !!

MgO has higher lattice energy because each ion carries two-unit charge whereas in NaCl each ion carries one-unit

I hope this will help you

itz Riya