Describe each highlighted bond in terms of the overlap of atomic orbitals. (if the highlighted bond is not a pi bond, select the blank option from the dropdown menu.)

nanotechnology is a powerful tool in biomaterials research as it creates numerous possibilities for the engineering of functional molecules. nano-bio refers to projected ability to incorporate biomimicry into various materials at nanoscale.  

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

fe 55.85 g/mol and h2o 18.02 g/mol.