The most predominantly ionic compounds will be obtained from the combination of elements belonging to

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

Use the following data to calculate $\Delta _{lattice}H^{\theta }$ for $NaBr$. $\Delta _{sub}H^{\theta }$ for sodium metal $= 108.4 \ kJ \ mol^{-1}$,ionization enthalpy of sodium $= 496 \ kJ \ mol^{-1}$,electron gain enthalpy of bromine $= -325 \ kJ \ mol^{-1}$,bond dissociation enthalpy of bromine $= 192 \ kJ \ mol^{-1}$,$\Delta _{f}H^{\theta }$ for $NaBr_{(s)}$ $= -360.1 \ kJ \ mol^{-1}$.

Which of the following has the highest melting point?

Among the following,which one has the highest cation to anion size ratio?

Which of the following statements is correct for $CsBr_3$?