1. Mar 16, 2007 #1

   dynamics

   

   Hi everyone i wanted to know why this is so, i know it has something to do with the quantum numbers but i want to know how and why? Your help will be greatly appreciated.

    

   dynamics, Mar 16, 2007
2. 
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3. Mar 16, 2007 #2

   jtbell

   

   Staff: Mentor

   Here's the very first hit from a Google search for "sodium doublet":
   
   http://hyperphysics.phy-astr.gsu.edu/hbase/quantum/sodzee.html

    

   jtbell, Mar 16, 2007
4. Mar 16, 2007 #3

   dextercioby

   

   Science Advisor

   Homework Helper

   Insights Author

   It;s actually a quadruplet, as the hyperfine structure further splits each line in the 5890 and 5896 A in another 2.

    

   dextercioby, Mar 16, 2007
5. Mar 16, 2007 #4

   Gokul43201

   

   Staff Emeritus

   Science Advisor

   Gold Member

   Why only 2? Are you neglecting the spin-splitting in the 3p states?

    

   Gokul43201, Mar 16, 2007
6. Mar 16, 2007 #5

   jtbell

   

   Staff: Mentor

   A couple of clicks away from the Hyperphysics page I referenced is a really cool example of a sodium lamp! :rofl:

    

   jtbell, Mar 16, 2007

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