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Answer: Here are the pictures, assuming the origin is halfway in between the protons:
z2 z2 z1 z2 z1 z2 z1 z1 Figure 5.1: Wave functions on the z -axis through the nuclei. From left to right: ψl ψr , ψr ψl ,
the symmetric combination a(ψl ψr + ψr ψl ), and the antisymmetric one a(ψl ψr − ψr ψl ).
These results can be explained as follows: For the state ψl ψr , electron 1 is around the left
proton, so its likely z1 positions are clustered around the position zlp of that proton, indicated
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- Fall '11