In this video explains about what are ions and how ions are formed
An ion is an atom or group of atom which carries either positive charge or negative charge
An atom is neutral
An atom to get stable it should obey octave rule / noble gas electronic configuration for that an atom follows two ways gain or lose of electrons from its valence shell and form ions
If an atom lose electron it becomes positive charge. If an atom gain electron it becomes negative charge
Positive charge is call Cation
Negative charge is called anion
An atom is stable when the valence shell is full
Shortcut of Cathode and anode
Don't Panic
Panic - positive is anode
Negative is cathode
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