What do all ions have in common in terms of their electronic structure?
Ions are atoms that have gained a charge. To do this metals will lose electrons from the outer shell and non-metals will gain electrons in the outer shell. For example, sodium has a configuration of 2,8,1 as an atom and 2,8 + as an ion, Chlorine has a configuration of 2,8,7 as an atom and 2,8,8- as an ion
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