The melting points and boiling points of some ionic compounds are given below: These compounds are termed ionic because they are formed by the…

The melting points and boiling points of some ionic compounds are given below:

Compound	Melting Point (K)	Boiling Point (K)
NaCl	$\displaystyle 1074$	$\displaystyle 1686$
LiCl	$\displaystyle 887$	$\displaystyle 1600$
$\displaystyle \mathrm{CaCl}_{2}$	$\displaystyle 1045$	$\displaystyle 1900$
CaO	$\displaystyle 2850$	$\displaystyle 3120$
$\displaystyle \mathrm{MgCl}_{2}$	$\displaystyle 981$	$\displaystyle 1685$

These compounds are termed ionic because they are formed by the transfer of electrons from a metal to a non-metal. The electron transfer in such compounds is controlled by the electronic configuration of the elements involved. Every element tends to attain a completely filled valence shell of its nearest noble gas or a stable octet.

Show the electron transfer in the formation of magnesium chloride.

List two properties of ionic compounds other than their high melting and boiling points.