Explain ionic bond with suitable example.

Explanation

1) Every complex comp i contains a central atom (or) ion.
2) The central metal atom (or) ion exhibits two types of valencies. They are a) Primary valency b) Secondary valency.
a) The Primary valency: It is numerically equal to the oxidation number of the metal atom or ion. These valencies. are ionisable. These valencies are represented by dotted line (. . . . . . )These valencies are non- directional.
b) Secondary valency: The number of chemical groups bound to the central atom (or) ion is equal to secondary valency. This is also called co-ordination number. These ies are directional and non-ionisable. These are represented by thick line(________)
3) Some ligands may. satisfy both primary and secondary valencies. Such ligands do not onise.
4) The primary valency, is known, as outer, sphere while the secondary valency is known as inner sphere for.co-ordination sphere