Ionic Bonding: Electrostatic attraction between two, oppositely charged ions.
METAL - NON-METAL BONDING
It arises when an electron is transferred from one atom to another, forming ions.
Metals lose electrons and become positive, while Non-metals gain electrons and become negative.
(More often than not, the Metals are from groups 1&2, while the Non-metals are from groups 5,6&7.)
Ionic Bonding, Example 1: NaCl.
Example 1: Sodium Chloride, NaCl.
Half Equations: Na -> Na+ + e- Cl + e- -> Cl-