What types of elements make up ionic compounds?
2 Answers
Elements with differences of electronegativity of 2.0 or more.
Explanation:
Generally ionic compounds are formed from metallic elements with low electronegativity with nonmetals that have a high electronegativity.
Usually, ionic compounds are composed or metals, and non-metals........Why?
Explanation:
Metals, all metals, are electron-rich materials.
Such a bonding picture can account for common metallic properties:
On the other hand, non-metals, tend to derive from the right hand side of the Periodic Table, and their high (unshielded!) nuclear charge means that they tend to be highly oxidizing, (and thus tend to be reduced):
The positive and negative ions can of course pair up to form stable salts in which anion is bound to cation in an infinite, non-molecular array..........
And thus the elements that commonly make up ionic compounds are metals and non-metals...........