> so, to fill this shell, will it be easier for sodium to steal
seven more electrons from another atom, or will it be easier
for sodium to give up that one electron and get rid of that third
shell? sodium is simply going to give away that last electron.
this means that it will lose an electron (negative charge) but
will keep the same number of protons (positive charges).
what will the sodium ion's overall charge be now?
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