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.
A covalent bond is a bond that forms between two nonmetals in which the atoms share electrons in order for them both to have a perfect octet of valence electrons. It is the st â¦ rongest type of intramolecular bond. covalent bond is a bond that forms between two nonmetals in which the atoms share electrons in order for them both to have a perfect octet of valence electrons. It is the st â¦ rongest type of intramolecular bond.