You should have one unbonded pair of electrons left on the phosphorus. This pair is going to make the shape of the molecule slightly tetrahedral (like a pyramid) and will cause the over electron distribution to be off. Whenever a molecule is not symmetrical it has a dipole moment.
Osteoarthritis, Arthritis in Dogs. Osteoarthritis, also known as degenerative joint disease (DJD), is defined as the progressive and permanent long-term deterioration of the cartilage surrounding the joints.
Initial Examination. Arthritis is extremely common in domestic dogs. One of the more common forms of arthritis, called osteoarthritis (OA) or degenerative joint disease (DJD), reportedly affects about one out of every five dogs at some point during their lifetime. Fortunately, arthritis is not particularly difficult to diagnose.