The first energy level in an atom can hold how many atoms?   The first shell of an atom can hold 2 electrons. This does not mean that all atoms do have 2 electrons in their first shell. The exception is hydrogen (atomic number = 1 â¦) which has only 1 electron in its first shell before reacting with other atoms.
Chronic idiopathic axonal polyneuropathy is an insidiously progressive sensory or sensorimotor polyneuropathy (a neurological disorder that occurs when many peripheral nerves throughout the body malfunction simultaneously).hronic idiopathic axonal polyneuropathy is an insidiously progressive sensory or sensorimotor polyneuropathy (a neurological disorder that occurs when many peripheral nerves throughout the body malfunction simultaneously).
Arginine-vasopressin (AVP) and oxytocin (OT) are both neurohypophysial hormones and share a high sequence and structure homology. They are cyclic nonapeptides and only differ at residues 3 and 8.