Bond produced when atoms of one element donate electrons to atoms of another element, forming positively and negatively charged ions respectively. The attraction between the oppositely charged ions constitutes the bond. Sodium chloride (Na+Cl-) is a typical ionic compound.
Each ion has the electronic structure of a noble gas. The maximum number of electrons that can be gained is usually two.
Black and white reflect the black and white communities and the harmony between them. Yellow represents the golden beaches. Blue stands for the sea. Effective date: 22 February 1979.