What are Epididymitis and Orchitis? Pain in the scrotum or testicle (âtesteâ) might be from epididymitis, orchitis or both. Epididymitis is swelling or pain in the back of the testicle in the coiled tube (epididymis) that stores and carries sperm.
Share. By Anne Marie Helmenstine, Ph.D. Definition: Valence bond theory is a chemical bonding theory that explains the bonding between two atoms is caused by the overlap of half-filled atomic orbitals. The two atoms share each other's unpaired electron to form a filled orbital to form a hybrid orbital and bond together.
Answers. Best Answer: These would be the outer, most loosely held electrons known as valence electrons. The way in which these electrons interact with each other and with the nuclei determine the kinds of bond. A valence bond is formed when the nuclei go halves in sharing the outer electrons. An ionic bond is formed when one of the atoms holds its electrons much more tightly than the other so that the electrons tend to spend most of their time around one of the atoms at the expense of the other. A polar valence bond is intermediate between an ionic bond and a symmetric valence bond.