The electronic structure and geometry of the superheavy group VI molecule (I 16)H, are examined and compared to those of the lighter group analogues H2O-PoH2. The spin-orbit interaction is found to lengthen the (116)-H bond and more importantly lead to a modest but significant H-(116)-H bond angle increase. It is suggested that the latter is the result of a rehybridization of the valence 7p orbitals with a "supervalent" 8s orbital of element 116.