Ionic compounds consist of positively charged cations and negatively charged anions held together by ionic bonds. Common examples include sodium chloride (NaCl), where sodium atoms form Na+ ions by losing electrons and chloride atoms form Cl- ions by gaining electrons, resulting in an electrostatic attraction between the ions to form the solid ionic compound. Ionic compounds generally have high melting and boiling points and are soluble in water.

1. Ionic
Compounds

2.  consist of a cation(+) and anion(-) ions
 Cation and Anion attracts each other forming a
ionic bond.
 Most of the ionic compound have high melting
and boiling points
 Exist as solid at room temperature and water
soluble
Ionic Compounds

3. NaCl is an Ionic Compound
Common salt (Sodium Chloride), or “table salt,” widely
used in our daily life like food preparation is an example
of ionic compound.

4. Formation of a Cation : Sodium Ion, Na+
One Na atom can achieve octet by losing its one valence
electron (outermost electron) and form Na+ ion

5. Formation of an anion : Chloride Ion, Cl–
An atom of Chlorine can achieve an octet by accepting an
electron to its existing valence electrons.
+ e
2,8,7 2,8,8

6. Formation of NaCl : Perfect union of Na+
and Cl- ion
 Sodium atom loses its valence electron to form Na+
 Chlorine atom gains the electron lost by Sodium forming Cl-
 Na+ and Cl- ions attract each other due to their opposite charge and
remain together. As a result NaCl compound is formed.
 To write the name of the compound - symbol of the metal is written
first (Na), followed by the symbol of the nonmetal (Cl).

7. Summary
 Ionic compound are formed between a strong metal like
alkali metal and a nonmetal such as halogens
 Metal atoms ultimately form a cation by losing valency
electron and non metal forms a anion by accepting electron
 Cations and Anions are held together in a ionic compound
by electrostatic attraction force between cation and anion