A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs and the stable balance of attractive and repulsive forces between atoms when they share electrons is known as covalent bonding.ovalent bonding is implied in the Lewis structure by indicating electrons shared between atoms. The term covalence in regard to bonding was first used in 1919 by Irving Langmuir in a Journal of the American Chemical Society article entitled The Arrangement of Electrons in Atoms and Molecules.
Causes. Leg length discrepancies can be caused by poor alignment of the pelvis or simply because one leg is structurally longer than the other. Regardless of the reason, your body wants to be symmetrical and will do its best to compensate for the length difference.
When one leg is shorter then the other, it is medically referred to as Limb Length Discrepancy or Short Leg Syndrome. Having a shorter leg does indeed produce a variety of bodily symptoms, and the term âsyndromeâ is very accurate. Syndrome implies a multitude of symptoms.ther symptoms may include the following: 1  Knee pain in both the short and long legs. 2  Sciatica, or inflammation of the nerves in the leg and lower back. 3  Poor balance when walking and running. 4  Foot and ankle pain.