Ions are atoms or molecules which have gained or lost one or more valence electrons, giving the ion a net positive or negative charge.
Cations- If the chemical species has more protons than electrons, it carries a net positive charge and is called cation.
Anions- If there are more electrons than protons, the species has a negative charge, and is called anion
Static electricity is an imbalance of electric charges within or on the surface of a material. The charge remains until it is able to move away by means of an electric current or electrical discharge. Static electricity is named in contrast with current electricity, which flows through wires or other conductors and transmits energy.
An electric current is the rate of flow of electric charge through a point or region. An electric current is said to exist when there is a net flow of electric charge through a region. In electric circuits this charge is often carried by electrons moving through a wire.
Difference between static and current electricity
The most significant difference between the static and current electricity is that in static electricity the charges are at rest and they are accumulating on the surface of the insulator. Whereas in current electricity the electrons are moving inside the conductor.
Static electricity is generated by friction, or sudden contact. Current electricity on the other hand, is a phenomenon of moving electrons in a particular path or direction, such as a stream of electrons flowing through conducting material.