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.
Degenerative Joint Disease (DJD), also known as Osteoarthritis, is a condition that occurs when the cartilage in the joint breaks down and the bones rub against each other. It is the most common form of arthritis, affecting more than 27 million people in the U.S. The lifetime risk of developing painful DJD in the knee is 45 percent.1.