<a href="https://en.wikipedia.org/wiki/MO_diagrams" class="extiw" title="w:MO diagrams">MO diagrams</a> depicting covalent (left) and polar covalent (right) bonding in a <a href="https://en.wikipedia.org/wiki/diatomic_molecule" class="extiw" title="w:diatomic molecule">diatomic molecule</a>. In both cases a bond is created by the formation of an electron pair.
<a href="//commons.wikimedia.org/wiki/User:Krishnavedala" title="User:Krishnavedala">Krishnavedala</a>
2015-04-13
<span class="int-own-work" lang="en">Own work</span>