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).
Etonogestrel contraceptive implant, sold under the brandnames NexplanonT and Implanon, is a single-rod subdermal contraceptive implant made by Merck & Co. that is inserted just under the skin of a woman's upper arm and contains etonogestrel.he possibility of the subdermal contraceptive implant began when silicone was discovered in the 1940s and found to be bio-compatible with the human body. In 1964, Folkman and Long published the first study demonstrating that such a rod could be used to deliver drugs.