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An easy explanation on how to write equations for ion formation
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let us consider two elements Na and Cl
In sodium electronic configuration is 2,8,1. If sodium loses one electron ,it will get stable configuration.
By loosing one electron ,Na become `Na^+` ion
In chlorine electronic configuration is 2,8,7 .If chlorine gets one electron ,it will get stable configuration.
By gaining one electron Cl ,changed to `Cl^-` ion.
Thus either by gaining or loosing ,a formation of ions take place.
Posted by pramodpandey on April 17, 2013 at 11:51 AM (Answer #1)
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