|WikiProject Chemistry||(Rated C-class, Top-importance)|
I removed this picture due to several objections:
1- it's kind of crude. 2- the animation flips by waaay too fast. 3- The text moving around made me feel a little sick 4- The "hydrogen atoms feel an attraction" is not a particularly useful description of what's going on, this hardly does justice to the notion of orbital overlap and wavefunction sums, and isn't particularly distinctive with respect to say, ionic bonding. 5- If we were to reject grounds #4, the phenomena isn't particular to sigma bonds, except for the fact that we are seeing two "hydrogens" coming together, Pi and Delta bonds work the same way.