Eight Standard >> Electrolysis | Introduction

Every material around us is composed of a number of atoms oriented in a certain manner. Every atom poses a positively charged nucleus and negatively charged electrons in different orbits around the nucleus. These electrons and the nucleus which is composed of neutrons and protons poses has some electrical phenomena which are called charge. 

If the same charges come to close a contract, then they repel each other and different charges attract each other.

The flow of positive charge determines the direction of the current.

Electrical conductivity: The measure of the ability to carry electric current is called electric conductivity.

There is some material that can easily pass electric current that provides lesser resistance to the flow of charge through them. That kind of material has high electrical conductivity. Those materials are called conductors. Some materials don't let charges pass to them easily. That kind of material is called an insulator.

Electrolysis: Whenever a current passes through a material infused state or in an aqueous solution, it undergoes a chemical change and yields a new substance.