What is difference b/w electrical ,electronic, and ionic conductivity?
Electrical conductivity happens in materials known as conductors, usually metals. The atoms of metals have one to three electrons in their outer shells. When the metal is in a solid state these outer electrons can freely move from atom to atom. When a charge is applied to one side of a lump of metal its electrons move easily in response, away if it is negative and towards if it is positive. Make a wire out of the metal and apply a steady supply of electrons at one end and you get a current through the wire. Ionic conductivity occurs in solutions of various salts (also in melted salts.) When an ionic compound (salt) is formed the electrons from the metallic atoms are captured by the atoms of the non metal. For example in sodium chloride, the sodium atoms give up their single outer electron becoming positive sodium ions and the chlorine atoms capture those electrons becoming negative chlorine ions. In the solid state the positive and negative ions are held together by their opposite char
