What are the Two Types of Ions and how are they Differenthttps://www.youtube.com/watch?v=EIAaGHK5pjAIon: An ion is a positively or negatively charged atom (or group of atoms). An ion is formed by the loss or gain of electrons by an atom, so it contains an unequal number of electrons and protons. Example: Sodium ion Na+, magnesium ion Mg2+, chloride ion Cl–, and … [Read more...] about What are the Two Types of Ions and how are they Different