Hypervalent molecule
= Hypervalent molecule
{wiki=Hypervalent_molecule}
A hypervalent molecule is one that has more than four bonds associated with a central atom, which typically involves elements from the third period or higher of the periodic table. In traditional valence bond theory, atoms like carbon (which is in the second period) are expected to form a maximum of four covalent bonds due to the tetravalent nature of carbon.