Out of the following,which compound will have electrovalent bonding?

Which type of bonding exists in $Li_2O$ and $CaF_2$ respectively?

Among the following oxides,which has the maximum lattice energy?

What is the effect of a more electronegative atom on the strength of an ionic bond?

Magnesium reacts with an element $(X)$ to form an ionic compound. If the ground state electronic configuration of $(X)$ is $1s^{2} 2s^{2} 2p^{3},$ the simplest formula for this compound is

The lattice energies of $KF$,$KCl$,$KBr$ and $KI$ follow the order: