[stevethor28]

sorry, i sent the message before finishing.

              [               H              ]-
              [              :O:            ]
              [        ::O:-P=O::       ]
              [              :O:            ]
              [               H              ]
Would this be the correct Lewis structure, obviously where the colons around the O are lone pair e-'s and aren't stacked

[AWK]

Still 4 electron pairs are missing 2 x( P-O and O-H) - Lewis structure  should contain all valence electrons.