Q:  What is the ratio of ionized to neutral sodium atoms?


          Using the values given, the Saha equation yields a ratio of

              
              N(ionized)    
             ------------  =   2400        (approximately)
               N(neutral)


   Q:  Does this have a large effect on the overall abundance of sodium?


           Yes, it does!   For every one neutral Na atom, we need
               to add another 2400 ionized ones.  That will boost
               the overall abundance by a factor of 2400!