sidenote.html

If Li2O is substituted in MgO, an anion vacancy forms, as the following shows.


Mg	O	Mg	O	Mg	O	Mg	O	Mg

O	Mg	O	Mg	O	Mg	O	Mg	O

Mg	O	Mg	O	Mg	O	Mg	O	Mg

O	Mg	O	Mg	O	Mg	O	Mg	O



Mg	O	Mg	O	Mg	O	Mg	O	Mg

O	Mg	O	Li	O	Mg	O	Mg	O

Mg	O	Mg		Li	O	Mg	O	Mg

O	Mg	O	Mg	O	Mg	O	Mg	O

If CaCl2 substitutes in CaO, you should be able to show that a cation vacancy will form.

jjweimer@matsci.uah.edu
11.Dec.95