agaubr Posted April 8, 2004 Share Posted April 8, 2004 Polar molecules do not need to have lone pairs of electrons but most do. The concept is that one atom has a stronger pull toward the electrons in the valence shell than the other atom to the point that the molecule develops slight charges of + and - on the molecule. This development of partial charge causes the molecuel to behave as charged moiety. Link to comment Share on other sites More sharing options...
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